CVE-2021-28557: Adobe Acrobat Reader out-of-bounds read in PDFLibTool could lead to information exposure
First published: Tue May 11 2021(Updated: )
Acrobat Reader DC versions versions 2021.001.20150 (and earlier), 2020.001.30020 (and earlier) and 2017.011.30194 (and earlier) are affected by an Out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to leak sensitive system information 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 | >=15.008.20082<=21.001.20150 | |
| Adobe Acrobat Reader | >=15.008.20082<=21.001.20150 | |
| Microsoft Windows | ||
| Adobe Acrobat Reader | >=17.011.30059<=17.011.30194 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.001.30020 | |
| Adobe Acrobat Reader | >=17.011.30059<=17.011.30194 | |
| Adobe Acrobat Reader | >=20.001.30005<=20.001.30020 | |
| Apple iOS and macOS |
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Frequently Asked Questions
What is the severity of CVE-2021-28557?
CVE-2021-28557 is considered a medium severity vulnerability due to its potential for leaking sensitive system information.
How do I fix CVE-2021-28557?
To fix CVE-2021-28557, update Adobe Acrobat Reader DC to version 2021.001.20151 or later, or the corresponding fixed versions of other affected software.
What versions are affected by CVE-2021-28557?
CVE-2021-28557 affects Adobe Acrobat Reader DC versions 2021.001.20150 and earlier, 2020.001.30020 and earlier, and Adobe Acrobat versions 2017.011.30194 and earlier.
Can CVE-2021-28557 be exploited remotely?
CVE-2021-28557 can be exploited by an unauthenticated attacker, potentially allowing for sensitive information leakage.
What are the implications of CVE-2021-28557?
The implications of CVE-2021-28557 include the risk of sensitive data exposure from applications running on affected versions of Adobe Acrobat.
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- vendor/microsoft
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- version/adobe acrobat reader/17.011.30194
- version/adobe acrobat reader/20.001.30005
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- vendor/apple
- canonical/apple ios and macos