Use After Free Affecting kernel-core package, versions <0:5.14.0-284.55.1.el9_2
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-6316950
- published 29 Feb 2024
- disclosed 31 Jan 2024
Introduced: 31 Jan 2024
CVE-2024-1085 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-284.55.1.el9_2 or higher.
This issue was patched in RHSA-2024:1018.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.
The nft_setelem_catchall_deactivate() function checks whether the catch-all set element is active in the current generation instead of the next generation before freeing it, but only flags it inactive in the next generation, making it possible to free the element multiple times, leading to a double free vulnerability.
We recommend upgrading past commit b1db244ffd041a49ecc9618e8feb6b5c1afcdaa7.