Vulnerability Description
A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKbdByName requests.. 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| X.Org | X Server | 1.20.4 |
| Fedoraproject | Fedora | 36 |
| Redhat | Enterprise Linux | 6.0 |
| Debian | Debian Linux | 11.0 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/security/cve/CVE-2022-4283Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2151761Issue TrackingThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202305-30
- https://www.debian.org/security/2022/dsa-5304Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2022-4283Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2151761Issue TrackingThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202305-30
- https://www.debian.org/security/2022/dsa-5304Third Party Advisory
FAQ
What is CVE-2022-4283?
CVE-2022-4283 is a vulnerability with a CVSS score of 7.8 (HIGH). A vulnerability was found in X.Org. This security flaw occurs because the XkbCopyNames function left a dangling pointer to freed memory, resulting in out-of-bounds memory access on subsequent XkbGetKb...
How severe is CVE-2022-4283?
CVE-2022-4283 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-4283?
Check the references section above for vendor advisories and patch information. Affected products include: X.Org X Server, Fedoraproject Fedora, Redhat Enterprise Linux, Debian Debian Linux.