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kernel: ipvlan: out-of-bounds write caused by unclear skb->cb

🗓️ 29 Aug 2023 10:04:22Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Linux ipvlan driver flaw causes out-of-bounds write from uninitialized skb control block, risking denial of service and local privilege escalation.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.2ppc64lebpftool4.18.0-193.113.1.el8_2bpftool-4.18.0-193.113.1.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2x86_64bpftool4.18.0-193.113.1.el8_2bpftool-4.18.0-193.113.1.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2ppc64lebpftool-debuginfo4.18.0-193.113.1.el8_2bpftool-debuginfo-4.18.0-193.113.1.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2x86_64bpftool-debuginfo4.18.0-193.113.1.el8_2bpftool-debuginfo-4.18.0-193.113.1.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2ppc64lekernel4.18.0-193.113.1.el8_2kernel-4.18.0-193.113.1.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2x86_64kernel4.18.0-193.113.1.el8_2kernel-4.18.0-193.113.1.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2noarchkernel-abi-whitelists4.18.0-193.113.1.el8_2kernel-abi-whitelists-4.18.0-193.113.1.el8_2.noarch.rpm
Red Hat Enterprise Linux8.2ppc64lekernel-core4.18.0-193.113.1.el8_2kernel-core-4.18.0-193.113.1.el8_2.ppc64le.rpm
Red Hat Enterprise Linux8.2x86_64kernel-core4.18.0-193.113.1.el8_2kernel-core-4.18.0-193.113.1.el8_2.x86_64.rpm
Red Hat Enterprise Linux8.2ppc64lekernel-debug4.18.0-193.113.1.el8_2kernel-debug-4.18.0-193.113.1.el8_2.ppc64le.rpm
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28 Jun 2026 12:40Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.17.8
EPSS0.00491
SSVC
CWE-787
linux kernelipvlan driverout of bounds writedenial of servicelocal privilege escalation
4