CVE-2022-32250

Description

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.

References

https://www.openwall.com/lists/oss-security/2022/05/31/1

https://www.debian.org/security/2022/dsa-5173

https://www.debian.org/security/2022/dsa-5161

https://security.netapp.com/advisory/ntap-20220715-0005/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UIZTJOJCVVEJVOQSCHE6IJQKMPISHQ5L/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MO6Y3TC4WUUNKRP7OQA26OVTZTPCS6F2/

https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html

https://github.com/theori-io/CVE-2022-32250-exploit

https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/net/netfilter?id=520778042ccca019f3ffa136dd0ca565c486cedd

https://bugzilla.redhat.com/show_bug.cgi?id=2092427

https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/

http://www.openwall.com/lists/oss-security/2022/09/02/9

http://www.openwall.com/lists/oss-security/2022/08/25/1

http://www.openwall.com/lists/oss-security/2022/07/03/6

http://www.openwall.com/lists/oss-security/2022/07/03/5

http://www.openwall.com/lists/oss-security/2022/06/20/1

http://www.openwall.com/lists/oss-security/2022/06/04/1

http://www.openwall.com/lists/oss-security/2022/06/03/1

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3