PT-2023-1620 · Linux+8 · Linux Kernel+8
Lianhui Tang
·
Published
2023-02-13
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Updated
2024-04-15
·
CVE-2023-26545
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.1.13
Description
The issue is related to a double free error in the MPLS mechanism of the Linux kernel, which can be exploited by a remote attacker to impact the confidentiality, integrity, and availability of data. This error occurs upon an allocation failure during the renaming of a device, specifically when registering the sysctl table under a new location in net/mpls/af mpls.c.
Recommendations
For Linux kernel versions prior to 6.1.13, update to version 6.1.13 or later to resolve the issue.
As a temporary workaround, consider restricting access to the
net/mpls/af mpls.c module to minimize the risk of exploitation.Fix
Double Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Suse
Ubuntu