CVE - CVE-2022-34918

CVE-ID
CVE-2022-34918	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://security.netapp.com/advisory/ntap-20220826-0004/ DEBIAN:DSA-5191 URL:https://www.debian.org/security/2022/dsa-5191 MISC:http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html MISC:http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.html MISC:https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6 MISC:https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452@randorisec.fr/T/#u MISC:https://www.openwall.com/lists/oss-security/2022/07/02/3 MISC:https://www.randorisec.fr/crack-linux-firewall/ MLIST:[oss-security] 20220705 Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_init URL:http://www.openwall.com/lists/oss-security/2022/07/05/1 MLIST:[oss-security] 20220806 Re: Linux kernel: Netfilter heap buffer overflow in nft_set_elem_init URL:http://www.openwall.com/lists/oss-security/2022/08/06/5
Assigning CNA
MITRE Corporation
Date Record Created
20220704	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20220704)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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