vulnerability

Red Hat: CVE-2024-1086: kernel: nf_tables: use-after-free vulnerability in the nft_verdict_init() function (Multiple Advisories)

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Severity
6
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:C)
Published
2024-01-31
Added
2024-02-22
Modified
2025-03-17

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.

The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT.

We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

Solution(s)

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

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