SB2023031649 - Privilege escalation in Linux kernel mpls
Published: March 16, 2023
Security Bulletin ID
SB2023031649
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Double Free (CVE-ID: CVE-2023-26545)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a double free in net/mpls/af_mpls.c during the renaming of a device. A local user can trigger a double free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.
References
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fda6c89fe3d9aca073495a664e1d5aea28cd4377
- https://github.com/torvalds/linux/commit/fda6c89fe3d9aca073495a664e1d5aea28cd4377
- https://security.netapp.com/advisory/ntap-20230316-0009/