CVE-2023-3269: Distros-[dirtyvma] privilege escalation via non-rcu-protected vma traversal
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.115-2Fixed in 7.2.12-1Fixed in 7.2.15-1 - Upgrade
Upgrade
Linux kernelto a version that resolves this vulnerability.Patch 9471f1f2f50282b9e8f59198ec6bb738b4ccc009
Event History
Frequently Asked Questions
What is the severity of CVE-2023-3269?
CVE-2023-3269 has a high severity rating due to its potential for exploitation leading to arbitrary code execution.
How do I fix CVE-2023-3269?
To remediate CVE-2023-3269, update the Linux kernel to a version that includes the patches for this vulnerability.
Which versions of Linux kernel are affected by CVE-2023-3269?
CVE-2023-3269 affects Linux kernel versions from 6.1.0 up to 6.1.37, 6.2.0 up to 6.3.11, and 6.4 release candidates.
What can happen if CVE-2023-3269 is exploited?
Exploitation of CVE-2023-3269 can lead to serious consequences such as arbitrary code execution and privilege escalation.
Is CVE-2023-3269 specific to certain Linux distributions?
Yes, CVE-2023-3269 impacts various Linux distributions, including Fedora and Red Hat Enterprise Linux across specific versions.