CVE-2023-5574
Xorg-x11-server: use-after-free bug in damagedestroy
CVSS Score
7.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-416 |
| Vendor | red hat |
| Product | red hat enterprise linux 9 |
| Published | Oct 25, 2023 |
| Last Updated | Nov 20, 2025 |
Stay Ahead of the Next One
Get instant alerts for red hat red hat enterprise linux 9
Be the first to know when new high vulnerabilities affecting red hat red hat enterprise linux 9 are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2024:2298 access.redhat.com: https://access.redhat.com/security/cve/CVE-2023-5574 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2244735 lists.x.org: https://lists.x.org/archives/xorg-announce/2023-October/003430.html security.netapp.com: https://security.netapp.com/advisory/ntap-20231130-0004/