CVEvulnerability
CVE-2020-14346
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-09-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 4.6 MEDIUM — AV:L/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-191
Description
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.
Affected configurations
• x.org x server (< 1.20.9)
• canonical ubuntu linux 14.04
• redhat enterprise linux 6.0
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
Related
Weakness · CWE (1)
- CWE-191 Integer Underflow (Wrap or Wraparound) weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1862246 Issue Tracking, Third Party Advisory
- https://lists.x.org/archives/xorg-announce/2020-August/003058.html Mailing List, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/202012-01 Third Party Advisory
- https://usn.ubuntu.com/4488-2/ Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1417/ Third Party Advisory, VDB Entry
- https://bugzilla.redhat.com/show_bug.cgi?id=1862246 Issue Tracking, Third Party Advisory
- https://lists.x.org/archives/xorg-announce/2020-August/003058.html Mailing List, Patch, Vendor Advisory
- https://security.gentoo.org/glsa/202012-01 Third Party Advisory
- https://usn.ubuntu.com/4488-2/ Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-20-1417/ Third Party Advisory, VDB Entry