VulnerabilityModified
CVE-2023-0494
A vulnerability was found in X.Org.
HIGH 7.8EPSS 0.90%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.90% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- x.org/x server · fedoraproject/fedora · redhat/enterprise linux · redhat/enterprise linux aus · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for ibm z systems eus · redhat/enterprise linux for power big endian · redhat/enterprise linux for power little endian · redhat/enterprise linux for power little endian eus · redhat/enterprise linux for scientific computing · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server for power little endian update services for sap solutions · redhat/enterprise linux server tus · redhat/enterprise linux server update services for sap solutions · redhat/enterprise linux server workstation
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995Issue Tracking, Third Party Advisory
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ecPatch
- https://lists.x.org/archives/xorg-announce/2023-February/003320.htmlMailing List, Vendor Advisory
- https://security.gentoo.org/glsa/202305-30
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995Issue Tracking, Third Party Advisory
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ecPatch
- https://lists.x.org/archives/xorg-announce/2023-February/003320.htmlMailing List, Vendor Advisory
- https://security.gentoo.org/glsa/202305-30
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.