High severity · published Oct 25, 2023
CVE-2023-5574
A use-after-free flaw was found in xorg-x11-server-Xvfb
7.0
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
7.0 · source: NVD
XS
X Server · X.org
1.13.0 and later · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5574
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5574
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:2298
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-5574
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2244735
Patch
https://lists.x.org/archives/xorg-announce/2023-October/003430.html
security.netapp.com
https://security.netapp.com/advisory/ntap-20231130-0004/
More from Enterprise Linux
9.8
CVE-2019-11043
Underflow in PHP-FPM can lead to RCE
9.8
CVE-2018-14667
The RichFaces Framework 3.X through 3.3.4 is vulnerable to Expression Language (EL) injection via the UserResource resource
9.8
CVE-2014-7169
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
9.8
CVE-2014-6271
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
9.0
CVE-2021-40438
mod_proxy SSRF