CVE-2021-21038: Acrobat Reader DC Out-Of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution
First published: Thu Feb 11 2021(Updated: )
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Write vulnerability when parsing a crafted jpeg file. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Credit: psirt@adobe.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.30018 | |
| Adobe Acrobat | <=20.013.20074 | |
| Adobe Acrobat Reader | >=17.0<=17.011.30188 | |
| Adobe Acrobat Reader | >=20.0<=20.001.300183 | |
| Adobe Acrobat Reader | <=20.013.20074 | |
| Apple iOS and macOS | ||
| Microsoft Windows |
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Frequently Asked Questions
What is the severity of CVE-2021-21038?
CVE-2021-21038 has been assigned a severity rating of important by Adobe.
How do I fix CVE-2021-21038?
To fix CVE-2021-21038, update Adobe Acrobat Reader DC to version 20.013.20074 or later, or any other affected version as specified by Adobe.
Who is affected by CVE-2021-21038?
CVE-2021-21038 affects users of Adobe Acrobat Reader DC versions 2020.013.20074 and earlier, 2020.001.30018 and earlier, and 2017.011.30188 and earlier.
What type of vulnerability is CVE-2021-21038?
CVE-2021-21038 is an Out-of-bounds Write vulnerability that allows unauthenticated attackers to exploit the software by sending crafted JPEG files.
What versions are impacted by CVE-2021-21038?
Adobe Acrobat Reader and Acrobat DC versions up to 20.013.20074 and earlier are impacted by CVE-2021-21038.
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