CVE-2023-1281

Name	CVE-2023-1281
Description	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3403-1, DLA-3404-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
linux (PTS)	bullseye	5.10.223-1	fixed
	bullseye (security)	5.10.226-1	fixed
	bookworm	6.1.115-1	fixed
	bookworm (security)	6.1.119-1	fixed
	sid, trixie	6.11.10-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
linux	source	buster	4.19.282-1	DLA-3403-1
linux	source	bullseye	5.10.178-1
linux	source	(unstable)	6.1.15-1
linux-5.10	source	buster	5.10.178-3~deb10u1	DLA-3404-1

Notes

https://kernel.dance/#ee059170b1f7e94e55fa6cadee544e176a6e59c2
https://git.kernel.org/linus/ee059170b1f7e94e55fa6cadee544e176a6e59c2 (6.2)
https://www.openwall.com/lists/oss-security/2023/04/11/3