CVEvulnerability
CVE-2022-34918
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2022-07-04
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-843
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.
Affected configurations
• linux linux kernel (>= 4.1 < 4.14.316)
• linux linux kernel (>= 4.15 < 4.19.284)
• linux linux kernel (>= 4.20 < 5.4.244)
• linux linux kernel (>= 5.5 < 5.10.130)
• linux linux kernel (>= 5.11 < 5.15.54)
• linux linux kernel (>= 5.16 < 5.18.11)
• debian debian linux 11.0
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• canonical ubuntu linux 20.04
• canonical ubuntu linux 22.04
• netapp h300s firmware
• netapp h500s firmware
• netapp h700s firmware
• netapp h410s firmware
• netapp h410c firmware
Related
Weakness · CWE (1)
- CWE-843 Access of Resource Using Incompatible Type weakness
References
- http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2022/07/05/1 Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/08/06/5 Mailing List, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6 Mailing List, Patch, Vendor Advisory
- https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u lore.kernel.org
- https://security.netapp.com/advisory/ntap-20220826-0004/ Third Party Advisory
- https://www.debian.org/security/2022/dsa-5191 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/07/02/3 Exploit, Mailing List, Third Party Advisory
- https://www.randorisec.fr/crack-linux-firewall/ Exploit, Third Party Advisory
- http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2022/07/05/1 Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/08/06/5 Mailing List, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6 Mailing List, Patch, Vendor Advisory
- https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u lore.kernel.org
- https://security.netapp.com/advisory/ntap-20220826-0004/ Third Party Advisory
- https://www.debian.org/security/2022/dsa-5191 Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/07/02/3 Exploit, Mailing List, Third Party Advisory
- https://www.randorisec.fr/crack-linux-firewall/ Exploit, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html cert-portal.siemens.com