PT-2021-3420 · Adobe · Acrobat Reader
Published
2021-05-11
·
Updated
2021-09-15
·
CVE-2021-28565
CVSS v2.0
10
High
| Vector | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
Adobe Acrobat Reader DC versions 2021.001.20150 and earlier
Adobe Acrobat Reader DC versions 2020.001.30020 and earlier
Adobe Acrobat Reader DC versions 2017.011.30194 and earlier
Description
The issue is related to an out-of-bounds read vulnerability in the PDFLibTool component. This vulnerability can be exploited by 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. The vulnerability is associated with reading beyond the boundaries of a buffer in memory.
Recommendations
For Adobe Acrobat Reader DC versions 2021.001.20150 and earlier, update to a version later than 2021.001.20150 to resolve the issue.
For Adobe Acrobat Reader DC versions 2020.001.30020 and earlier, update to a version later than 2020.001.30020 to resolve the issue.
For Adobe Acrobat Reader DC versions 2017.011.30194 and earlier, update to a version later than 2017.011.30194 to resolve the issue.
As a temporary workaround, consider avoiding the use of the PDFLibTool component until a patch is available. Restrict access to malicious files to minimize the risk of exploitation.
Fix
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Acrobat Reader