CVE-2023-3269
Distros-[dirtyvma] privilege escalation via non-rcu-protected vma traversal
HIGH 7.8EPSS 1.3%
A vulnerability exists in the memory management subsystem of the Linux kernel. The lock handling for accessing and updating virtual memory areas (VMAs) is incorrect, leading to use-after-free problems. This issue can be successfully exploited to execute arbitrary kernel code, escalate containers, and gain root privileges.
- Affected
- Red Hat · Fedora · kernel · Red Hat Enterprise Linux 6 · Red Hat Enterprise Linux 7 · Red Hat Enterprise Linux 8 · Red Hat Enterprise Linux 9
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 REDHAT
- 7.8 HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS
- 1.30% chance of exploitation in the next 30 days, 70th percentile
- Published
- 2023-07-11
- Updated
- 2025-03-05
Proof-of-concept exploits (3)
- lrh2000/StackRot501★ · 2026-02-23
- ChristopherPatrickKuntz/bifrost-infrastructure-disclosure0★ · 2026-09-07
- IdanBanani/Linux-Kernel-VR-Exploitation68★ · 2023-12-12
Security advisories
- http://seclists.org/fulldisclosure/2023/Jul/43
- https://access.redhat.com/security/cve/CVE-2023-3269
- https://bugzilla.redhat.com/show_bug.cgi?id=2215268
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/me…
- https://security.netapp.com/advisory/ntap-20230908-0001