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 Software | Affected Version | How 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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CVE-2023-1281 is classified as a Privilege Escalation vulnerability in the Linux kernel.
To fix CVE-2023-1281, upgrade to Linux kernel version 6.2 or apply the relevant patches for affected versions.
CVE-2023-1281 affects Linux kernel versions from 4.14 up to 6.1.13, as well as specific release candidates.
CVE-2023-1281 affects multiple systems including Red Hat's Kernel and IBM's Security Verify Governance, Identity Manager components.
A Use After Free vulnerability occurs when a program continues to use memory after it has been freed, potentially leading to exploit opportunities.