PT-2021-2321 · Adobe · Acrobat Reader
Published
2021-02-09
·
Updated
2022-10-26
·
CVE-2021-21063
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 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 memory corruption vulnerability when parsing a specially crafted PDF file, which can 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.
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 Adobe Acrobat Reader DC to open PDF files from untrusted sources until a patch is available.
Fix
Memory Corruption
Access of Memory Location After End of Buffer
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Related Identifiers
Affected Products
Acrobat Reader