Use After Free The advisory has been revoked - it doesn't affect any version of package webkit2gtk (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-WEBKIT2GTK-1089355
- published27 Mar 2021
- disclosed8 Dec 2020
Introduced: 8 Dec 2020
CVE-2020-9947 (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 issue was addressed with improved memory management. This issue is fixed in watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes for Windows 12.10.9, iCloud for Windows 11.5, tvOS 14.0, Safari 14.0. Processing maliciously crafted web content may lead to arbitrary code execution.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-9947
- https://support.apple.com/en-us/HT211843
- https://support.apple.com/en-us/HT211844
- https://support.apple.com/en-us/HT211845
- https://support.apple.com/en-us/HT211850
- https://support.apple.com/en-us/HT211935
- https://support.apple.com/en-us/HT211952
- http://www.openwall.com/lists/oss-security/2021/03/22/1
- https://security.gentoo.org/glsa/202104-03