Buffer overflow in X.org X Server
CVE-2023-5367
A out-of-bounds write flaw was found in the xorg-x11-server. This issue occurs due to an incorrect calculation of a buffer offset when copying data stored in the heap in the XIChangeDeviceProperty function in Xi/xiproperty.c and in RRChangeOutputProperty function in randr/rrproperty.c, allowing for possible escalation of privileges or denial of service.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.006 (47.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000
Affected products
- X.org X Server
- X.org Xwayland
- Debian Linux — versions 11.0, 12.0
- Fedoraproject Fedora — versions 37, 38, 39
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 6 Extended Lifecycle Support - Extension — versions 0:1.1.0-25.el6_10.13
- Red Hat Enterprise Linux 7 — versions 0:1.20.4-24.el7_9, 0:1.8.0-26.el7_9
- Red Hat Enterprise Linux 8 — versions 0:1.13.1-2.el8_9.1, 0:1.20.11-22.el8, 0:21.1.3-15.el8
- Red Hat Enterprise Linux 8.1 Update Services For SAP Solutions — versions 0:1.9.0-16.el8_1.4
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:1.9.0-15.el8_2.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2023:6802 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:6808 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7373 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7388 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7405 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7428 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7436 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7526 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7533 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0010 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-5367?
- CVE-2023-5367 is a high-severity vulnerability in X.org X Server, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2023-10-25.
- How severe is CVE-2023-5367?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-5367 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.