Use of uninitialized resource in Linux kernel cxl core driver

1) Use of uninitialized resource

EUVDB-ID: #VU91677

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-52792

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to use of uninitialized resource within the cxl_region_attach() function in drivers/cxl/core/region.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/90db4c1d5ebaf574d3c3065c055977982c378a83
http://git.kernel.org/stable/c/9090c5537c93cd0811ab7bfbd925b57addfffb60
http://git.kernel.org/stable/c/07ffcd8ec79cf7383e1e45815f4842fd357991c2
http://git.kernel.org/stable/c/0718588c7aaa7a1510b4de972370535b61dddd0d

Q & A

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.