Buffer overflow in X.org X Server
CVE-2022-2320
A flaw was found in the Xorg-x11-server. The specific flaw exists within the handling of ProcXkbSetDeviceInfo requests. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated buffer. This flaw allows an attacker to escalate privileges and execute arbitrary code in the context of root.
Vulnerability class: Buffer Overflow
EPSS: 0.006 (45.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- X.org X_server — versions 21.1.0
- N/a Xorg-x11-server — versions xorg-x11-server 21.1
Weakness classification (CWE)
References
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (VDB Entry, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory)
- secalert@redhat.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-2320?
- CVE-2022-2320 is a high-severity vulnerability in X.org X Server, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-09-01.
- How severe is CVE-2022-2320?
- High severity. CVSS v3 base score is 7.8 out of 10.