PT-2021-2319 · Adobe · Acrobat Reader
Published
2021-02-09
·
Updated
2021-09-14
·
CVE-2021-21033
CVSS v3.1
8.8
High
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Adobe Acrobat Reader DC versions 2020.013.20074 and earlier
Adobe Acrobat Reader DC versions 2020.001.30018 and earlier
Adobe Acrobat Reader DC versions 2017.011.30188 and earlier
Description
The issue is related to a Use After Free vulnerability, which allows an unauthenticated attacker to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction, where a victim must open a malicious file. This can be done using a specially crafted PDF file.
Recommendations
For Adobe Acrobat Reader DC versions 2020.013.20074 and earlier, update to a version later than 2020.013.20074 to resolve the issue.
For Adobe Acrobat Reader DC versions 2020.001.30018 and earlier, update to a version later than 2020.001.30018 to resolve the issue.
For Adobe 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 the Annotation setProps Method until a patch is available.
Restrict access to malicious PDF files to minimize the risk of exploitation.
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Acrobat Reader