An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.
https://www.openwall.com/lists/oss-security/2022/07/02/3
https://lore.kernel.org/netfilter-devel/[email protected]/T/#u
http://www.openwall.com/lists/oss-security/2022/07/05/1
https://www.randorisec.fr/crack-linux-firewall/
https://www.debian.org/security/2022/dsa-5191
http://www.openwall.com/lists/oss-security/2022/08/06/5
https://security.netapp.com/advisory/ntap-20220826-0004/
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html
Source: MITRE
Published: 2022-07-04
Updated: 2022-10-26
Type: CWE-843
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
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