PT-2021-5400 · Adobe · Acrobat Reader
Published
2021-06-08
·
Updated
2021-09-13
·
CVE-2021-28631
CVSS v2.0
9.3
High
| Vector | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Adobe Acrobat Reader DC versions 2021.001.20155 and earlier
Adobe Acrobat Reader DC versions 2020.001.30025 and earlier
Adobe Acrobat Reader DC versions 2017.011.30196 and earlier
Description
The issue is related to a Use After Free vulnerability, which could allow 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, specifically a specially crafted PDF file. This could enable a remote attacker to execute arbitrary code.
Recommendations
For Adobe Acrobat Reader DC versions 2021.001.20155 and earlier, update to a version later than 2021.001.20155 to resolve the issue.
For Adobe Acrobat Reader DC versions 2020.001.30025 and earlier, update to a version later than 2020.001.30025 to resolve the issue.
For Adobe Acrobat Reader DC versions 2017.011.30196 and earlier, update to a version later than 2017.011.30196 to resolve the issue.
As a temporary workaround, consider avoiding the use of AcroForm fields 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