CVE-2022-34918
60Vexday Risk Score
Patch now. It exploitation observed by VulnCheck and has a working public exploit.
ssvc Actepss 5.5%
from disclosure to weapon15 days
Published on NVDJul 4
1st PoC+15d
metasploitFeb 7
VulnCheck+968d
exploitation probability
5.5%top 8% of all CVEs
observed exploitation
yesVulnCheck
2 public exploit(s)
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 products
n/a · n/apublic PoCs found — 2
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References
http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.htmlhttp://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.htmlhttps://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952eacbb6https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#uhttps://security.netapp.com/advisory/ntap-20220826-0004/https://www.debian.org/security/2022/dsa-5191https://www.openwall.com/lists/oss-security/2022/07/02/3https://www.randorisec.fr/crack-linux-firewall/http://www.openwall.com/lists/oss-security/2022/07/05/1http://www.openwall.com/lists/oss-security/2022/08/06/5