CVE-2022-34918
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-34918
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-34918.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-34918
- Downstream
- Related
- Published
- 2022-07-04T21:15:07Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nftseteleminit (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 CAPNETADMIN access.) This can be fixed in nftsetelemparsedata in net/netfilter/nftablesapi.c.
- References
-
- http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html
- http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html
- http://www.openwall.com/lists/oss-security/2022/07/05/1
- http://www.openwall.com/lists/oss-security/2022/08/06/5
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6
- https://security.netapp.com/advisory/ntap-20220826-0004/
- https://www.debian.org/security/2022/dsa-5191
- https://www.openwall.com/lists/oss-security/2022/07/02/3
- https://www.randorisec.fr/crack-linux-firewall/
- https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u