CVE-2022-34918

Description

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.

Weakness classification

• nvd@nist.gov: CWE-843

Primary references

• cve@mitre.org — Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Third Party Advisory, VDB Entry
• cve@mitre.org — Exploit, Mailing List, Third Party Advisory
• cve@mitre.org — Mailing List, Third Party Advisory
• cve@mitre.org — Mailing List, Patch, Vendor Advisory
• cve@mitre.org
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org — Exploit, Mailing List, Third Party Advisory
• cve@mitre.org — Exploit, Third Party Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory, VDB Entry