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kernel: netfilter: xtables out-of-bounds read in u32_match_it()

🗓️ 22 May 2024 10:16:27Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

Netfilter xt_u32 flaw allows local privilege by out-of-bounds read from oversized fields, causing crash or memory disclosure.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.10x86_64kernel-rt4.18.0-553.rt7.342.el8_10kernel-rt-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-core4.18.0-553.rt7.342.el8_10kernel-rt-core-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug4.18.0-553.rt7.342.el8_10kernel-rt-debug-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-core4.18.0-553.rt7.342.el8_10kernel-rt-debug-core-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-debuginfo4.18.0-553.rt7.342.el8_10kernel-rt-debug-debuginfo-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-devel4.18.0-553.rt7.342.el8_10kernel-rt-debug-devel-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-kvm4.18.0-553.rt7.342.el8_10kernel-rt-debug-kvm-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-modules4.18.0-553.rt7.342.el8_10kernel-rt-debug-modules-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debug-modules-extra4.18.0-553.rt7.342.el8_10kernel-rt-debug-modules-extra-4.18.0-553.rt7.342.el8_10.x86_64.rpm
Red Hat Enterprise Linux8.10x86_64kernel-rt-debuginfo4.18.0-553.rt7.342.el8_10kernel-rt-debuginfo-4.18.0-553.rt7.342.el8_10.x86_64.rpm
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28 Jul 2026 18:09Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.16 - 6.7
EPSS0.00397
SSVC
CWE-125
netfilteru32 structureout of boundsprivileged accessmemory disclosurecrash
2