Use After Free Affecting kernel-rt-kvm package, versions <0:4.18.0-477.27.1.rt7.290.el8_8
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTKVM-5810585
- published 30 Jul 2023
- disclosed 19 Jul 2023
Introduced: 19 Jul 2023
CVE-2023-4004 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-kvm to version 0:4.18.0-477.27.1.rt7.290.el8_8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.
References
- https://access.redhat.com/security/cve/CVE-2023-4004
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://access.redhat.com/errata/RHSA-2023:5255
- https://bugzilla.redhat.com/show_bug.cgi?id=2225275
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230719190824.21196-1-fw@strlen.de/
- https://security.netapp.com/advisory/ntap-20231027-0001/
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492