CVE-2022-34918

CVE Details

Release Date:	2022-07-02
Impact:	Important	What is this?

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.

See more information about CVE-2022-34918 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.8
Vector String:	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (kernel-uek)	ELSA-2023-12842	2023-10-03
Oracle Linux version 7 (kernel-uek)	ELSA-2023-12588	2023-07-12
Oracle Linux version 7 (kernel-uek)	ELSA-2023-12842	2023-10-03
Oracle Linux version 7 (kernel-uek-container)	ELSA-2023-12590	2023-07-11
Oracle Linux version 8 (kernel-uek)	ELSA-2022-9827	2022-09-21
Oracle Linux version 8 (kernel-uek)	ELSA-2023-12588	2023-07-12
Oracle Linux version 8 (kernel-uek-container)	ELSA-2022-9830	2022-09-21
Oracle Linux version 8 (kernel-uek-container)	ELSA-2023-12591	2023-07-12
Oracle Linux version 9 (kernel)	ELSA-2022-6610	2022-09-22
Oracle Linux version 9 (kernel-uek)	ELSA-2022-9827	2022-09-21
Oracle VM version 3 (kernel-uek)	OVMSA-2023-0023	2023-11-02