Use After Free Affecting kernel-tools package, versions <0:4.18.0-477.64.1.el8_8
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Test your applications- Snyk ID SNYK-RHEL8-KERNELTOOLS-7556416
- published 24 Jul 2024
- disclosed 2 Mar 2024
Introduced: 2 Mar 2024
CVE-2023-52530 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-tools to version 0:4.18.0-477.64.1.el8_8 or higher.
This issue was patched in RHSA-2024:4740.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: fix potential key use-after-free
When ieee80211_key_link() is called by ieee80211_gtk_rekey_add() but returns 0 due to KRACK protection (identical key reinstall), ieee80211_gtk_rekey_add() will still return a pointer into the key, in a potential use-after-free. This normally doesn't happen since it's only called by iwlwifi in case of WoWLAN rekey offload which has its own KRACK protection, but still better to fix, do that by returning an error code and converting that to success on the cfg80211 boundary only, leaving the error for bad callers of ieee80211_gtk_rekey_add().
References
- https://access.redhat.com/security/cve/CVE-2023-52530
- https://git.kernel.org/stable/c/e8a834eb09bb95c2bf9c76f1a28ecef7d8c439d0
- https://git.kernel.org/stable/c/e8e599a635066c50ac214c3e10858f1d37e03022
- https://git.kernel.org/stable/c/2408f491ff998d674707725eadc47d8930aced09
- https://git.kernel.org/stable/c/2f4e16e39e4f5e78248dd9e51276a83203950b36
- https://git.kernel.org/stable/c/31db78a4923ef5e2008f2eed321811ca79e7f71b
- https://git.kernel.org/stable/c/65c72a7201704574dace708cbc96a8f367b1491d