#VU91674 Integer underflow in Linux kernel - CVE-2024-26828

Vulnerability identifier: #VU91674

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26828

CWE-ID: CWE-191

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 execute arbitrary code.

The vulnerability exists due to integer underflow within the parse_server_interfaces() function in fs/smb/client/smb2ops.c. A local user can execute arbitrary code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512
https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308
https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301
https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204

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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.