#VU100198 Buffer overflow in Linux kernel - CVE-2024-50250

Vulnerability identifier: #VU100198

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-2024-50250

CWE-ID: CWE-119

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 escalate privileges on the system.

The vulnerability exists due to memory corruption within the dax_unshare_iter() function in fs/dax.c. A local user can escalate privileges on the system.

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/bdbc96c23197d773a7d1bf03e4f11de593b0ff28
https://git.kernel.org/stable/c/9bc18bb476e50e32e5d08f2734d63d63e0fa528c
https://git.kernel.org/stable/c/8e9c0f500b42216ef930f5c0d1703989a451913d
https://git.kernel.org/stable/c/50793801fc7f6d08def48754fb0f0706b0cfc394

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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.