SB2021121430 - Multiple vulnerabilities in macOS Big Sur
Published: December 14, 2021 Updated: February 13, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 41 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2021-30995)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition in the Preferences feature. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
2) Out-of-bounds write (CVE-ID: CVE-2021-30929)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing USD files within the Model I/O subsystem. A remote attacker can create a specially crafted USD file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
3) Buffer overflow (CVE-ID: CVE-2021-30979)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing USD or ABC files within the Model I/O subsystem. A remote attacker can create a specially crafted file, 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.
4) Out-of-bounds read (CVE-ID: CVE-2021-30940)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the Model I/O subsystem when processing USD files. A remote attacker can create a specially crafted USD file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
5) Out-of-bounds read (CVE-ID: CVE-2021-30941)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the Model I/O subsystem when processing USD files. A remote attacker can create a specially crafted USD file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
6) Out-of-bounds read (CVE-ID: CVE-2021-30973)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the Model I/O subsystem. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
7) Out-of-bounds write (CVE-ID: CVE-2021-30971)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing USD files within the Model I/O subsystem. A remote attacker can create a specially crafted USD file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.
8) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30968)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to a validation issue in the Sandbox feature, related to hard link behavior. A malicious application can bypass certain Privacy preferences.
9) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30990)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to a logic issue in the LaunchServices subsystem. A malicious application may bypass Gatekeeper checks.
10) Improper access control (CVE-ID: CVE-2021-30947)
The vulnerability allows a local application to gain unauthorized access to otherwise restricted information.
The vulnerability exists due to improper access restrictions within Sandbox implementation. A local application can bypass implemented security restrictions and access user's files.
11) Security restrictions bypass (CVE-ID: CVE-2021-30946)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to a logic issue in the Sandbox feature. A malicious application can bypass certain Privacy preferences.
12) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30975)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to a design issue within the Script Editor. A malicious OSAX scripting addition can bypass Gatekeeper checks and circumvent sandbox restrictions.
13) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30767)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to a logic issue in the TCC feature. A local user can modify protected parts of the file system.
14) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30970)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to logic issue in TCC feature. A malicious application is able to bypass Privacy preferences.
15) State Issues (CVE-ID: CVE-2021-30965)
The vulnerability allows a local application to perform a denial of service (DoS) attack.
The vulnerability exists due to a logic issue in the TCC feature. A malicious application is able to cause a denial of service to Endpoint Security clients.
16) Input validation error (CVE-ID: CVE-2021-30938)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the Wi-Fi subsystem. A local user can cause unexpected system termination or read kernel memory.
17) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30976)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to a logic issue in the LaunchServices subsystem. A malicious application may bypass Gatekeeper checks.
18) Buffer overflow (CVE-ID: CVE-2021-30949)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the OS kernel subsystem. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.
19) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30950)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to a logic issue in the Archive Utility. A malicious application can bypass Gatekeeper checks.
20) Out-of-bounds read (CVE-ID: CVE-2021-30958)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing media files in CoreAudio. A remote attacker can create a specially crafted media file, trick the victim into opening it using the affected software, trigger an out-of-bounds read error and execute arbitrary code on the target system.
21) Information disclosure (CVE-ID: CVE-2021-30931)
The vulnerability allows a local user to read kernel memory.
The vulnerability exists due to a logic error in the Bluetooth subsystem. A local user can read parts of kernel memory.
22) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30935)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a logic issue within the Bluetooth subsystem. A local application can execute arbitrary code with kernel privileges.
23) Buffer overflow (CVE-ID: CVE-2021-30942)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in ColorSync when processing ICC profiles in images. A remote attacker can create a specially crafted image, 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.
24) Out-of-bounds read (CVE-ID: CVE-2021-30959)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition withing the CoreAudio subsystem. A remote attacker can create a specially crafted media file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
25) Out-of-bounds read (CVE-ID: CVE-2021-30961)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition withing the CoreAudio subsystem. A remote attacker can create a specially crafted media file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
26) Out-of-bounds read (CVE-ID: CVE-2021-30963)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition withing the CoreAudio subsystem. A remote attacker can create a specially crafted media file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.
27) Input validation error (CVE-ID: CVE-2021-30945)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Crash Reporter. A local user can pass specially crafted input to the system and escalate privileges.
28) Buffer overflow (CVE-ID: CVE-2021-30937)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the OS kernel subsystem. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.
29) Buffer overflow (CVE-ID: CVE-2021-30977)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in Graphics Drivers. A local user can run a specially crafted program to trigger memory corruption and execute arbitrary code with kernel privileges.
30) Input validation error (CVE-ID: CVE-2021-30969)
The vulnerability allows a remote attacker to execute arbitrary files on the system.
The vulnerability exists due to insufficient validation of user-supplied input in Help Viewer when processing URL. A remote attacker can trick the victim to open a specially crafted URL and cause unexpected JavaScript execution from a file on disk.
31) Out-of-bounds read (CVE-ID: CVE-2021-30939)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing DDS images in ImageIO. A remote attacker can create a specially crafted image file, trick the victim into opening it using the affected software, trigger out-of-bounds read error and execute arbitrary code on the target system.
32) Buffer overflow (CVE-ID: CVE-2021-30981)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in Intel Graphics Driver component. A local user can run a specially crafted program to trigger memory corruption and execute arbitraty code with kernel privileges.
33) Race condition (CVE-ID: CVE-2021-30982)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in IOUSBHostFamily subsystem. A remote attacker can pass specially crafted data to the system and perform a denial of service attack.
34) Use-after-free (CVE-ID: CVE-2021-30927)
The vulnerability allows a local user to escalate privileges on the system.
35) Use-after-free (CVE-ID: CVE-2021-30980)
The vulnerability allows a local user to escalate privileges on the system.
36) Information disclosure (CVE-ID: CVE-2021-30895)
The vulnerability allows a malicious application to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the Game Center. A malicious application can gain unauthorized access to user's contacts.
37) Buffer overflow (CVE-ID: CVE-2021-30957)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in CoreAudio when processing media files. A remote attacker can create a specially crafted media file, 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.
38) Out-of-bounds read (CVE-ID: CVE-2021-30962)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary error in CoreAudio component when parsing files. A remote attacker can create a specially crafted audio file, trick the victim into opening it, trigger an out-of-bounds read error and disclose personal information.
39) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-31007)
The vulnerability allows a local application to bypass implemented security restrictions.
The vulnerability exists due to improper permissions management in File Provider. A local application can bypass Privacy preferences.
40) Out-of-bounds read (CVE-ID: CVE-2021-31002)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a boundary condition in SMB implementation. A local application can trigger an out-of-bounds read error and execute arbitrary code with system privileges.
41) Out-of-bounds read (CVE-ID: CVE-2021-31013)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in FontParser. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger an out-of-bounds read error and read contents of memory on the system.
Remediation
Install update from vendor's website.