CVEvulnerability
CVE-2022-46340
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-12-14
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
Description
A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.
Affected configurations
• x.org x server 1.20.4
• fedoraproject fedora 36
• fedoraproject fedora 37
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://access.redhat.com/security/cve/CVE-2022-46340 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2151755 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWTH3SNJ3GKYDSN7I3QDGWYEPSMWU6EP/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202305-30 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5304 Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2022-46340 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2151755 Issue Tracking, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5NELB7YDWRABYYBG4UPTHRBDTKJRV5M2/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DXDF2O5PPLE3SVAJJYUOSAD5QZ4TWQ2G/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RWTH3SNJ3GKYDSN7I3QDGWYEPSMWU6EP/ Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z67QC4C3I2FI2WRFIUPEHKC36J362MLA/ Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202305-30 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5304 Third Party Advisory