7.8
CWE
416
Advisory Published
Updated

CVE-2023-1281: UAF in Linux kernel's tcindex (traffic control index filter) implementation

First published: Wed Mar 22 2023(Updated: )

A Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. <a href="https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2">https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee059170b1f7e94e55fa6cadee544e176a6e59c2</a>

Credit: cve-coordination@google.com cve-coordination@google.com

Affected SoftwareAffected VersionHow to fix
redhat/Kernel<6.2
6.2
IBM Security Verify Governance, Identity Manager software component<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager virtual appliance component<=ISVG 10.0.2
Linux Kernel>=4.14<5.10.169
Linux Kernel>=5.11<5.15.95
Linux Kernel>=5.16<6.1.13
Linux Kernel=6.2-rc1
Linux Kernel=6.2-rc2
Linux Kernel=6.2-rc3
Linux Kernel=6.2-rc4
Linux Kernel=6.2-rc5
Linux Kernel=6.2-rc6
Linux Kernel=6.2-rc7
Linux Kernel=6.2-rc8
debian/linux
5.10.223-1
5.10.226-1
6.1.123-1
6.1.119-1
6.12.11-1
6.12.12-1

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