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Use After Free The advisory has been revoked - it doesn't affect any version of package webkit2gtk  (opens in a new tab)

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EPSS
2.92% (87th percentile)

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  • Snyk IDSNYK-UBUNTU1604-WEBKIT2GTK-1319000
  • published15 Jul 2021
  • disclosed8 Jul 2021
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Introduced: 8 Jul 2021

CVE-2021-21779  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk package and not the webkit2gtk package as distributed by Ubuntu.

A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.