PT-2021-4965 · Adobe · Acrobat Reader
Published
2021-09-14
·
Updated
2021-10-06
·
CVE-2021-39836
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
Adobe Acrobat Reader DC versions 2021.005.20060 and earlier
Adobe Acrobat Reader DC versions 2020.004.30006 and earlier
Adobe Acrobat Reader DC versions 2017.011.30199 and earlier
Description
A use-after-free vulnerability in the processing of the AcroForm
buttonGetIcon action could result in 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 vulnerability affects the processing of PDF files and could allow an attacker to execute arbitrary code.Recommendations
For Adobe Acrobat Reader DC versions 2021.005.20060 and earlier, update to a version later than 2021.005.20060 to resolve the issue.
For Adobe Acrobat Reader DC versions 2020.004.30006 and earlier, update to a version later than 2020.004.30006 to resolve the issue.
For Adobe Acrobat Reader DC versions 2017.011.30199 and earlier, update to a version later than 2017.011.30199 to resolve the issue.
As a temporary workaround, consider avoiding the use of the AcroForm
buttonGetIcon action until a patch is available.Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Acrobat Reader