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kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

🗓️ 14 Sep 2021 08:54:45Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Out-of-bounds write in xt_compat_target_from_user during IPT_SO_SET_REPLACE enables local privilege gain via user namespaces.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1062_36_11-5.el7kpatch-patch-3_10_0-1062_36_1-1-5.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1062_36_11-5.el7kpatch-patch-3_10_0-1062_36_1-1-5.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1062_36_1-debuginfo1-5.el7kpatch-patch-3_10_0-1062_36_1-debuginfo-1-5.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1062_36_1-debuginfo1-5.el7kpatch-patch-3_10_0-1062_36_1-debuginfo-1-5.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1062_37_11-5.el7kpatch-patch-3_10_0-1062_37_1-1-5.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1062_37_11-5.el7kpatch-patch-3_10_0-1062_37_1-1-5.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1062_37_1-debuginfo1-5.el7kpatch-patch-3_10_0-1062_37_1-debuginfo-1-5.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1062_37_1-debuginfo1-5.el7kpatch-patch-3_10_0-1062_37_1-debuginfo-1-5.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64lekpatch-patch-3_10_0-1062_40_11-5.el7kpatch-patch-3_10_0-1062_40_1-1-5.el7.ppc64le.rpm
Red Hat Enterprise Linux7x86_64kpatch-patch-3_10_0-1062_40_11-5.el7kpatch-patch-3_10_0-1062_40_1-1-5.el7.x86_64.rpm
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11 Jul 2026 17:41Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.6
CVSS 3.17.8 - 8.3
EPSS0.78684
SSVC
5