PT-2021-2320 · Adobe · Acrobat Reader+1
Published
2021-02-09
·
Updated
2021-09-08
·
CVE-2021-21038
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Acrobat Reader DC versions 2020.013.20074 and earlier
Acrobat Reader DC versions 2020.001.30018 and earlier
Acrobat Reader DC versions 2017.011.30188 and earlier
Description
The issue is related to an out-of-bounds write vulnerability when parsing a crafted jpeg file, allowing an unauthenticated attacker to achieve arbitrary code execution in the context of the current user. Exploitation requires user interaction, where a victim must open a malicious file. This vulnerability affects Adobe Acrobat and Reader, enabling attackers to execute arbitrary code.
Recommendations
For Acrobat Reader DC versions 2020.013.20074 and earlier, update to a version later than 2020.013.20074 to resolve the issue.
For Acrobat Reader DC versions 2020.001.30018 and earlier, update to a version later than 2020.001.30018 to resolve the issue.
For Acrobat Reader DC versions 2017.011.30188 and earlier, update to a version later than 2017.011.30188 to resolve the issue.
As a temporary workaround, consider avoiding the use of crafted jpeg files in Adobe Acrobat and Reader until a patch is available.
Fix
Memory Corruption
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Weakness Enumeration
Related Identifiers
Affected Products
Acrobat Reader
Acrobat