CVE-2022-34918

Katalog CVE

CVSS 7.8 · High EPSS 5,5%

Kerentanan Access of Resource Using Incompatible Type ('Type Confusion') pada linux kernel, debian linux +6 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

4 Juli 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

EPSS (30 hari)

5,5% peluang dieksploitasi; lebih tinggi dari 92,6% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=7e6bc1f6cabcd30aba0b11219d8e01b952ea... mailing list · patch · advisory vendor
• http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html advisory pihak ketiga · vdb entry
• http://packetstormsecurity.com/files/168543/Netfilter-nft_set_elem_init-Heap-Overflow-Privilege-Escalation.htm... exploit · advisory pihak ketiga · vdb entry
• http://www.openwall.com/lists/oss-security/2022/07/05/1 exploit · mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2022/08/06/5 mailing list · advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20220826-0004/ advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5191 advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2022/07/02/3 exploit · mailing list · advisory pihak ketiga
• https://www.randorisec.fr/crack-linux-firewall/ exploit · advisory pihak ketiga
• https://lore.kernel.org/netfilter-devel/cd9428b6-7ffb-dd22-d949-d86f4869f452%40randorisec.fr/T/#u