Vulnerability Details : CVE-2023-5574
A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2023-5574
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:a:x.org:x_server:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-5574
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-5574
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
NIST | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
Red Hat, Inc. | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.0
|
5.9
|
Red Hat, Inc. | |
|
7.0
|
HIGH | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
N/A
|
N/A
|
RedHat-CVE-2023-5574 |
CWE ids for CVE-2023-5574
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-5574
-
https://access.redhat.com/errata/RHSA-2024:2298
RHSA-2024:2298 - Security Advisory - Red Hat Customer Portal
-
https://access.redhat.com/security/cve/CVE-2023-5574
CVE-2023-5574- Red Hat Customer PortalThird Party Advisory
-
https://lists.x.org/archives/xorg-announce/2023-October/003430.html
X.Org Security Advisory: Issues in X.Org X server prior to 21.1.9 and Xwayland prior to 23.2.2Patch;Vendor Advisory
-
https://security.netapp.com/advisory/ntap-20231130-0004/
October 2023 X.Org X Server Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=2244735
2244735 – (CVE-2023-5574) CVE-2023-5574 xorg-x11-server: Use-after-free bug in DamageDestroyIssue Tracking;Third Party Advisory
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