CVE-2022-32250high
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
http://www.openwall.com/lists/oss-security/2022/06/03/1
http://www.openwall.com/lists/oss-security/2022/06/04/1
https://www.debian.org/security/2022/dsa-5161
https://bugzilla.redhat.com/show_bug.cgi?id=2092427
http://www.openwall.com/lists/oss-security/2022/06/20/1
https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html
http://www.openwall.com/lists/oss-security/2022/07/03/6
http://www.openwall.com/lists/oss-security/2022/07/03/5
https://www.debian.org/security/2022/dsa-5173
https://security.netapp.com/advisory/ntap-20220715-0005/
http://www.openwall.com/lists/oss-security/2022/08/25/1
https://github.com/theori-io/CVE-2022-32250-exploit
https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/
Details
Source: MITRE
Published: 2022-06-02
Updated: 2022-09-09
Type: CWE-416
Risk Information
CVSS v2
Base Score: 7.2
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.9
Severity: HIGH
CVSS v3
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH