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CVE-2021-21028: Use After Free

February 2, 2021 (updated February 12, 2021)

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Use After Free vulnerability. 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.

References

  • github.com/Adobe-Consulting-Services/acs-aem-commons/commit/14d769c86606c4ce9a93c47a19f87e1ad72788d6
  • github.com/Adobe-Consulting-Services/acs-aem-commons/security/advisories/GHSA-f92j-qf46-p6vm
  • github.com/advisories/GHSA-f92j-qf46-p6vm
  • nvd.nist.gov/vuln/detail/CVE-2021-21028

Code Behaviors & Features

Detect and mitigate CVE-2021-21028 with GitLab Dependency Scanning

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Affected versions

All versions before 4.10.0

Fixed versions

  • 4.10.0

Solution

Upgrade to version 4.10.0 or above.

Impact 8.8 HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-416: Use After Free
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

maven/com.adobe.acs/acs-aem-commons/CVE-2021-21028.yml

Spotted a mistake? Edit the file on GitLab.

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