Vulnerability identifier: #VU86244
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the nft_inner_init() and nft_expr_inner_parse() functions in nft_inner.c. A local user can set specially crafted values for the NFTA_INNER_NUM and NFTA_EXPR_NAM netlink attributes and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Linux kernel:
External links
http://access.redhat.com/security/cve/CVE-2023-5972
http://bugzilla.redhat.com/show_bug.cgi?id=2248189
http://github.com/torvalds/linux/commit/505ce0630ad5d31185695f8a29dde8d29f28faa7
http://github.com/torvalds/linux/commit/52177bbf19e6e9398375a148d2e13ed492b40b80
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.