Integer Overflow or Wraparound The advisory has been revoked - it doesn't affect any version of package xorg-hwe-16.04 (opens in a new tab)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-XORGHWE1604-636460
- published25 Aug 2020
- disclosed15 Sept 2020
Introduced: 25 Aug 2020
CVE-2020-14346 (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 xorg-hwe-16.04 package and not the xorg-hwe-16.04 package as distributed by Ubuntu.
A flaw was found in xorg-x11-server before 1.20.9. An integer underflow in the X input extension protocol decoding in the X server may lead to arbitrary access of memory contents. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2020-14346
- https://security-tracker.debian.org/tracker/CVE-2020-14346
- https://security.gentoo.org/glsa/202012-01
- https://bugzilla.redhat.com/show_bug.cgi?id=1862246
- https://lists.x.org/archives/xorg-announce/2020-August/003058.html
- https://www.zerodayinitiative.com/advisories/ZDI-20-1417/
- https://usn.ubuntu.com/4488-2/