PT-2024-6504 · Linux+8 · Linux Kernel+8
Pablo Neira Ayuso
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Published
2024-01-24
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Updated
2025-09-29
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CVE-2024-26808
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions from v5.9 to v6.6
Description
The issue is related to a use-after-free vulnerability in the Netfilter component of the Linux kernel, specifically in the nft chain filter function. This vulnerability can lead to a local privilege escalation. The problem arises when a stale reference to a netdevice remains in the hook list after a NETDEV UNREGISTER event is reported.
Recommendations
As a temporary workaround, consider disabling the
nft chain filter function until a patch is available.
Restrict access to the Netfilter component to minimize the risk of exploitation.
Update to a version of the Linux kernel that has the fix for the netfilter: nft chain filter: handle NETDEV UNREGISTER for inet/ingress basechain issue.Exploit
Fix
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse
Ubuntu