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kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation

🗓️ 10 Oct 2023 10:28:31Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Netfilter nf_tables batch requests use-after-free allows arbitrary kernel reads/writes; local user could escalate privileges.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1160_88_11-3.el7kpatch-patch-3_10_0-1160_88_1-1-3.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1160_88_11-3.el7kpatch-patch-3_10_0-1160_88_1-1-3.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1160_88_1-debuginfo1-3.el7kpatch-patch-3_10_0-1160_88_1-debuginfo-1-3.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1160_88_1-debuginfo1-3.el7kpatch-patch-3_10_0-1160_88_1-debuginfo-1-3.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1160_90_11-3.el7kpatch-patch-3_10_0-1160_90_1-1-3.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1160_90_11-3.el7kpatch-patch-3_10_0-1160_90_1-1-3.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1160_90_1-debuginfo1-3.el7kpatch-patch-3_10_0-1160_90_1-debuginfo-1-3.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1160_90_1-debuginfo1-3.el7kpatch-patch-3_10_0-1160_90_1-debuginfo-1-3.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1160_92_11-3.el7kpatch-patch-3_10_0-1160_92_1-1-3.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1160_92_11-3.el7kpatch-patch-3_10_0-1160_92_1-1-3.el7.x86_64.rpm
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28 Jun 2026 12:40Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.17.8
EPSS0.12966
SSVC
CWE-416
netfiltertablesuse after freekernel memoryarbitrary readsarbitrary writesprivilege escalationlocal useradministration capability
4