#VU100614 Use-after-free in Linux kernel - CVE-2024-50280

Vulnerability identifier: #VU100614

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-2024-50280

CWE-ID: CWE-416

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 a use-after-free error within the check_migrations(), destroy(), cache_create() and cache_ctr() functions in drivers/md/dm-cache-target.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/5a754d3c771280f2d06bf8ab716d6a0d36ca256e
https://git.kernel.org/stable/c/8cc12dab635333c4ea28e72d7b947be7d0543c2c
https://git.kernel.org/stable/c/aee3ecda73ce13af7c3e556383342b57e6bd0718
https://git.kernel.org/stable/c/135496c208ba26fd68cdef10b64ed7a91ac9a7ff

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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.