CVE-2021-21034: Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability
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 Read vulnerability. An unauthenticated attacker could leverage this vulnerability to locally elevate privileges 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-2021-21034?
CVE-2021-21034 has been rated as a critical severity vulnerability due to its potential to allow unauthenticated local privilege escalation.
How does CVE-2021-21034 affect Adobe Acrobat products?
CVE-2021-21034 affects Adobe Acrobat Reader DC and other versions, potentially allowing an attacker to perform out-of-bounds read operations.
How can I fix CVE-2021-21034?
To fix CVE-2021-21034, users should update their Adobe Acrobat products to the latest version as recommended by Adobe.
What versions of Adobe Acrobat are affected by CVE-2021-21034?
CVE-2021-21034 affects Adobe Acrobat Reader DC versions 2020.013.20074 and earlier, 2020.001.30018 and earlier, and 2017.011.30188 and earlier.
What is the impact of exploiting CVE-2021-21034?
Exploiting CVE-2021-21034 may allow an attacker to gain elevated privileges on the local system.
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- vendor/adobe
- canonical/adobe acrobat reader
- version/adobe acrobat reader/17.0
- version/adobe acrobat reader/17.011.30188
- version/adobe acrobat reader/20.0
- version/adobe acrobat reader/20.001.30018
- canonical/adobe acrobat
- version/adobe acrobat/20.013.20074
- version/adobe acrobat reader/20.001.300183
- version/adobe acrobat reader/20.013.20074
- vendor/apple
- canonical/apple ios and macos
- vendor/microsoft
- canonical/microsoft windows