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kernel: lack a full memory barrier upon the assignment of a new table value in net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h may lead to DoS

🗓️ 31 Aug 2021 09:22:59Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 2 Views

DoS in the Linux kernel due to an incorrect memory barrier in xt_replace_table under netfilter.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64bpftool3.10.0-1160.41.1.el7bpftool-3.10.0-1160.41.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lebpftool3.10.0-1160.41.1.el7bpftool-3.10.0-1160.41.1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xbpftool3.10.0-1160.41.1.el7bpftool-3.10.0-1160.41.1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64bpftool3.10.0-1160.41.1.el7bpftool-3.10.0-1160.41.1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64bpftool-debuginfo3.10.0-1160.41.1.el7bpftool-debuginfo-3.10.0-1160.41.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lebpftool-debuginfo3.10.0-1160.41.1.el7bpftool-debuginfo-3.10.0-1160.41.1.el7.ppc64le.rpm
Red Hat Enterprise Linux7s390xbpftool-debuginfo3.10.0-1160.41.1.el7bpftool-debuginfo-3.10.0-1160.41.1.el7.s390x.rpm
Red Hat Enterprise Linux7x86_64bpftool-debuginfo3.10.0-1160.41.1.el7bpftool-debuginfo-3.10.0-1160.41.1.el7.x86_64.rpm
Red Hat Enterprise Linux7ppc64kernel3.10.0-1160.41.1.el7kernel-3.10.0-1160.41.1.el7.ppc64.rpm
Red Hat Enterprise Linux7ppc64lekernel3.10.0-1160.41.1.el7kernel-3.10.0-1160.41.1.el7.ppc64le.rpm
Rows per page

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11 Jul 2026 17:41Current
6.7Medium risk
Vulners AI Score6.7
CVSS 24.9
CVSS 3.15.5
EPSS0.00413
CWE-366
linux kernelmemory barrierxt_replace_tablenetfilterdenial of service
2