high7.8
CVE-2023-0494
A vulnerability was found in X.Org.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| X.Org | X Server | before 21.1.7 |
| Fedoraproject | Fedora | Versions 36, 37 |
| Redhat | Enterprise Linux | Versions 8.0, 8.1, 9.0 |
| Redhat | Enterprise Linux Aus | Versions 8.4, 8.6 |
| Redhat | Enterprise Linux Desktop | Version 7.0 |
| Redhat | Enterprise Linux Eus | Versions 8.4, 8.6, 9.0 |
| Redhat | Enterprise Linux For Ibm Z Systems | Versions 7.0, 8.0 |
| Redhat | Enterprise Linux For Ibm Z Systems Eus | Versions 8.4, 8.6 |
| Redhat | Enterprise Linux For Power Big Endian | Version 7.0 |
| Redhat | Enterprise Linux For Power Little Endian | Versions 7.0, 8.0, 9.0 |
| Redhat | Enterprise Linux For Power Little Endian Eus | Versions 8.4, 8.6 |
| Redhat | Enterprise Linux For Scientific Computing | Version 7.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html
- https://security.gentoo.org/glsa/202305-30
- https://bugzilla.redhat.com/show_bug.cgi?id=2165995
- https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec
- https://lists.x.org/archives/xorg-announce/2023-February/003320.html
- https://security.gentoo.org/glsa/202305-30