CVE-2024-1086

Name	CVE-2024-1086
Description	A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.
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-3840-1, DLA-3841-1

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
	trixie	6.12.5-1	fixed
	sid	6.12.6-1	fixed

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

Package	Type	Release	Fixed Version	Origin
linux	source	buster	4.19.316-1	DLA-3840-1
linux	source	bullseye	5.10.209-2
linux	source	bookworm	6.1.76-1
linux	source	(unstable)	6.6.15-1
linux-5.10	source	buster	5.10.209-2~deb10u1	DLA-3841-1

Notes

https://pwning.tech/nftables/
https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660
https://git.kernel.org/linus/f342de4e2f33e0e39165d8639387aa6c19dff660 (6.8-rc2)
https://github.com/Notselwyn/CVE-2024-1086