Multiple vulnerabilities in Apple tvOS



Published: 2021-04-28
Risk Critical
Patch available YES
Number of vulnerabilities 35
CVE ID CVE-2021-1849
CVE-2021-1740
CVE-2021-30660
CVE-2021-30652
CVE-2021-1875
CVE-2021-1822
CVE-2021-1815
CVE-2021-1739
CVE-2021-1868
CVE-2021-1851
CVE-2021-1844
CVE-2021-1825
CVE-2021-1817
CVE-2021-1826
CVE-2021-1820
CVE-2021-30661
CVE-2021-1832
CVE-2021-1816
CVE-2021-1836
CVE-2021-1882
CVE-2021-1808
CVE-2021-1857
CVE-2021-1846
CVE-2021-1809
CVE-2021-1811
CVE-2021-1881
CVE-2021-1813
CVE-2021-1860
CVE-2021-1883
CVE-2021-1884
CVE-2021-1885
CVE-2021-30653
CVE-2021-1843
CVE-2021-1858
CVE-2021-1864
CWE ID CWE-347
CWE-20
CWE-125
CWE-362
CWE-415
CWE-277
CWE-264
CWE-119
CWE-79
CWE-665
CWE-416
CWE-787
CWE-122
Exploitation vector Network
Public exploit Vulnerability #16 is being exploited in the wild.
Vulnerable software
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tvOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Advisory

1) Improper Verification of Cryptographic Signature

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1849

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a malicious application to bypass implemented security restrictions.

The vulnerability exists due to improper signature validation with in the AppleMobileFileIntegrity component. A malicious application can bypass Privacy preferences.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1740

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of directory paths. A local user can modify protected parts of the filesystem.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-30660

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within kernel. A local user can run a specially crafted program to trigger out-of-bounds read error and read contents of kernel memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Race condition

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-30652

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition within the libxpc library. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Double Free

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1875

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a double free error when processing files within the libxslt library. A remote attacker can trick the victim to open a specially crafted file, trigger heap corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Insecure Inherited Permissions

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1822

CWE-ID: CWE-277 - Insecure inherited permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists within the MobileInstallation component. A local user can modify protected parts of the file system and escalate privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Input validation error

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1815

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of directory paths. A local user can modify protected parts of the filesystem.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Input validation error

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1739

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of directory paths. A local user can modify protected parts of the filesystem.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Security restrictions bypass

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1868

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Tailspin component does not properly impose security restrictions. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Buffer overflow

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1851

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within macOS kernel. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Buffer overflow

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1844

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing web content in WebKit. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Universal cross-site scripting

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1825

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Buffer overflow

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1817

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing web content in WebKit. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Universal cross-site scripting

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1826

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within WebKit. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

15) Improper Initialization

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1820

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper memory initialization in WebKit. A remote attacker can create a specially crafted web page, trick the victim into visiting it and disclose contents of process memory.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

16) Use-after-free

Risk: Critical

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-30661

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing web content within the WebKit Storage component. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

17) Insecure Inherited Permissions

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1832

CWE-ID: CWE-277 - Insecure inherited permissions

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists within the kernel component, as copied files may not have the expected file permissions. A local user can abuse such behavior to elevate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

18) Buffer overflow

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1816

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within OS kernel. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

19) Security restriction bypass

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1836

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to bypass intended security restrictions.

The vulnerability exists within Assets component. A local user is able to create or modify privileged files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

20) Buffer overflow

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1882

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the Foundation component. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code on the system with root privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

21) Out-of-bounds read

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1808

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Audio component. A local user can run a specially crafted program to trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

22) Improper Initialization

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1857

CWE-ID: CWE-665 - Improper Initialization

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper initialization within the CFNetwork component when processing crafted web content. A remote attacker can trick the victim to open a specially crafted webpage, trigger memory corruption and gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

23) Out-of-bounds read

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1846

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the CoreAudio component. A remote attacker can create a specially crafted audio file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

24) Out-of-bounds read

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1809

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the CoreAudio component. A local user can run a specially crafted program to trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

25) Out-of-bounds read

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1811

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the CoreText component when processing specially crafted font files. A remote attacker can create a specially crafted font file, trick the victim into opening a document or a web page that contains the malicious font, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

26) Out-of-bounds write

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1881

CWE-ID: CWE-787 - Out-of-bounds Write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing font files within the GetFDIndex function in libFontParser. A remote attacker can create a specially crafted OTF font, trick the victim into a document of a web page with the malicious font, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

27) Security restrictions bypass

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1813

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Foundation component does not properly impose security restrictions. A local user can run a specially crafted program to escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

28) Out-of-bounds read

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1860

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within macOS kernel. A local user can run a specially crafted program to trigger an out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

29) Heap-based buffer overflow

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1883

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heimdal when processing server messages. A remote attacker can trick the user to connect to a malicious server, send a specially crafted message, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

30) Race condition

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1884

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due to a race condition in Heimdal. A remote attacker can crash the application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

31) Out-of-bounds read

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1885

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition within the ImageIO component. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and execute arbitrary code on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

32) Input validation error

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-30653

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input within the ImageIO component A remote attacker can trick the victim to open a specially crafted image and execute arbitrary code on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

33) Input validation error

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1843

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to insufficient validation of user-supplied input within the ImageIO component. A remote attacker can create a specially crafted image, trick the victim into opening it and execute arbitrary code on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

34) Out-of-bounds read

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1858

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the DecodeRow function in ImageIO. A remote attacker can create a specially crafted KTX image, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

35) Use-after-free

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2021-1864

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing JavaScript in iTunes Store. A remote attacker can use a specially crafted JavaScript to trigger use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

tvOS: 14.0 18J386, 14.0.1 18J400, 14.0.2 18J411, 14.2 18K57, 14.3 18K561, 14.4 18K802, 14.5 18L204

CPE External links

https://support.apple.com/en-us/HT212323

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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