Improper Initialization The advisory has been revoked - it doesn't affect any version of package xorg-x11-server-Xwayland (opens in a new tab)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-CENTOS9-XORGX11SERVERXWAYLAND-2877607
- published26 Jul 2021
- disclosed31 Jul 2020
Introduced: 31 Jul 2020
CVE-2020-14347 (opens in a new tab)Amendment
The Centos security team deemed this advisory irrelevant for Centos:9.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xorg-x11-server-Xwayland package and not the xorg-x11-server-Xwayland package as distributed by Centos.
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347
- https://access.redhat.com/security/cve/CVE-2020-14347
- https://www.debian.org/security/2020/dsa-4758
- https://security.gentoo.org/glsa/202012-01
- https://lists.x.org/archives/xorg-announce/2020-July/003051.html
- https://www.openwall.com/lists/oss-security/2020/07/31/2
- https://lists.debian.org/debian-lts-announce/2020/08/msg00057.html
- https://access.redhat.com/errata/RHSA-2020:5408
- https://access.redhat.com/errata/RHSA-2021:1804
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.html
- https://usn.ubuntu.com/4488-1/
- https://usn.ubuntu.com/4488-2/