Heap-based Buffer Overflow The advisory has been revoked - it doesn't affect any version of package qtwebengine-opensource-src (opens in a new tab)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-UBUNTU2510-QTWEBENGINEOPENSOURCESRC-15025623
- published17 Jan 2026
- disclosed26 Jan 2021
Introduced: 26 Jan 2021
CVE-2020-27814 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:25.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream qtwebengine-opensource-src package and not the qtwebengine-opensource-src package as distributed by Ubuntu.
A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-27814
- https://www.debian.org/security/2021/dsa-4882
- https://security.gentoo.org/glsa/202101-29
- https://bugzilla.redhat.com/show_bug.cgi?id=1901998
- https://github.com/uclouvain/openjpeg/issues/1283
- https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html
- https://www.oracle.com//security-alerts/cpujul2021.html