Out-of-bounds read in Linux kernel ufs core driver

1) Out-of-bounds read

EUVDB-ID: #VU91097

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26842

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to an out-of-bounds read error within the ufshcd_cmd_inflight() and ufshcd_clear_cmd() functions in drivers/ufs/core/ufshcd.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

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/7ac9e18f5d66087cd22751c5c5bf0090eb0038fe
https://git.kernel.org/stable/c/a992425d18e5f7c48931121993c6c69426f2a8fb
https://git.kernel.org/stable/c/b513d30d59bb383a6a5d6b533afcab2cee99a8f8

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.