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

🗓️ 06 Jun 2023 08:50:56Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Use-after-free in nf_tables batch processing allows local CAP_NET_ADMIN users to crash or escalate privileges via kernel memory access.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.0aarch64bpftool0:5.14.0-70.58.1.el9_0bpftool-0:5.14.0-70.58.1.el9_0.aarch64.rpm
Red Hat Enterprise Linux9.0ppc64lebpftool0:5.14.0-70.58.1.el9_0bpftool-0:5.14.0-70.58.1.el9_0.ppc64le.rpm
Red Hat Enterprise Linux9.0s390xbpftool0:5.14.0-70.58.1.el9_0bpftool-0:5.14.0-70.58.1.el9_0.s390x.rpm
Red Hat Enterprise Linux9.0x86_64bpftool0:5.14.0-70.58.1.el9_0bpftool-0:5.14.0-70.58.1.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0aarch64bpftool-debuginfo0:5.14.0-70.58.1.el9_0bpftool-debuginfo-0:5.14.0-70.58.1.el9_0.aarch64.rpm
Red Hat Enterprise Linux9.0ppc64lebpftool-debuginfo0:5.14.0-70.58.1.el9_0bpftool-debuginfo-0:5.14.0-70.58.1.el9_0.ppc64le.rpm
Red Hat Enterprise Linux9.0s390xbpftool-debuginfo0:5.14.0-70.58.1.el9_0bpftool-debuginfo-0:5.14.0-70.58.1.el9_0.s390x.rpm
Red Hat Enterprise Linux9.0x86_64bpftool-debuginfo0:5.14.0-70.58.1.el9_0bpftool-debuginfo-0:5.14.0-70.58.1.el9_0.x86_64.rpm
Red Hat Enterprise Linux9.0aarch64kernel0:5.14.0-70.58.1.el9_0kernel-0:5.14.0-70.58.1.el9_0.aarch64.rpm
Red Hat Enterprise Linux9.0ppc64lekernel0:5.14.0-70.58.1.el9_0kernel-0:5.14.0-70.58.1.el9_0.ppc64le.rpm
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29 Jun 2026 22:38Current
6.6Medium risk
Vulners AI Score6.6
CVSS 3.17.8
EPSS0.12966
SSVC
CWE-416
netfilteruse after freebatch requestsprivilege escalationlocal usercapability net adminkernel memory
3