Information disclosure in Linux kernel dma

1) Information disclosure

EUVDB-ID: #VU91344

Risk: Low

CVSSv3.1: 2.9 [AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-35939

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to information disclosure within the dma_direct_alloc(), __dma_direct_free_pages() and dma_direct_alloc_pages() functions in kernel/dma/direct.c. A local user can gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/4e0cfb25d49da2e6261ad582f58ffa5b5dd8c8e9
http://git.kernel.org/stable/c/4031b72ca747a1e6e9ae4fa729e765b43363d66a
http://git.kernel.org/stable/c/b57326c96b7bc7638aa8c44e12afa2defe0c934c
http://git.kernel.org/stable/c/b9fa16949d18e06bdf728a560f5c8af56d2bdcaf

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.