Multiple vulnerabilities in Adobe Reader and Acrobat



Published: 2021-05-11
Risk Critical
Patch available YES
Number of vulnerabilities 11
CVE-ID CVE-2021-28550
CVE-2021-28561
CVE-2021-28560
CVE-2021-28558
CVE-2021-28557
CVE-2021-28555
CVE-2021-28565
CVE-2021-28564
CVE-2021-28559
CVE-2021-28562
CVE-2021-28553
CWE-ID CWE-416
CWE-119
CWE-122
CWE-125
CWE-787
CWE-200
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
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Adobe Acrobat
Client/Desktop applications / Office applications

Adobe Reader
Client/Desktop applications / Office applications

Vendor Adobe

Security Bulletin

This security bulletin contains information about 11 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU53125

Risk: Critical

CVSSv3.1:

CVE-ID: CVE-2021-28550

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 PDF content. A remote attacker can create a specially crafted PDF file, trick the victim into opening 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 updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

2) Buffer overflow

EUVDB-ID: #VU53128

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28561

CWE-ID: CWE-119 - Memory corruption

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 PDF files. A remote attacker can create a specially crafted PDF document, 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 updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

3) Heap-based buffer overflow

EUVDB-ID: #VU53129

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28560

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 when processing PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, 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 updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

4) Heap-based buffer overflow

EUVDB-ID: #VU53130

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28558

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 when processing PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, 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 updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

5) Out-of-bounds read

EUVDB-ID: #VU53131

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28557

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

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 PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, trigger an out-of-bounds read and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

6) Out-of-bounds read

EUVDB-ID: #VU53132

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-28555

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, trigger an out-of-bounds read and read arbitrary files on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

7) Out-of-bounds read

EUVDB-ID: #VU53133

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28565

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

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 PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, trigger an out-of-bounds read and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

8) Out-of-bounds write

EUVDB-ID: #VU53134

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28564

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

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 PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it, trigger an out-of-bounds write and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

9) Information disclosure

EUVDB-ID: #VU53135

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-28559

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing PDF files. A remote attacker can create a specially crafted PDF document, trick the victim into opening it and gain access to private information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

10) Use-after-free

EUVDB-ID: #VU53126

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28562

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 PDF content. A remote attacker can create a specially crafted PDF file, trick the victim into opening 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html
http://talosintelligence.com/vulnerability_reports/TALOS-2021-1233

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

11) Use-after-free

EUVDB-ID: #VU53127

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-28553

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 PDF content. A remote attacker can create a specially crafted PDF file, trick the victim into opening 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Adobe Acrobat: 20.001.30002 - 20.013.20074, 2015.006.30306 - 2015.006.30527, 2017.008.30051 - 2017.012.20098, 2018.011.20055

Adobe Reader: 2020.001.30005 - 2020.013.20074, 2019.008.20071 - 2019.021.20061, 2015.006.30306 - 2015.006.30523, 2017.009.20044 - 2017.012.20098, 2018.009.20044 - 2018.011.20063


CPE2.3 External links

http://helpx.adobe.com/security/products/acrobat/apsb21-29.html

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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