#VU94945 Use-after-free in Linux kernel - CVE-2024-41057

Vulnerability identifier: #VU94945

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-2024-41057

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 cachefiles_free_volume() function in fs/cachefiles/volume.c, within the cachefiles_withdraw_objects() and cachefiles_withdraw_cache() functions in fs/cachefiles/cache.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/8de253177112a47c9af157d23ae934779188b4e1
https://git.kernel.org/stable/c/9e67589a4a7b7e5660b524d1d5fe61242bcbcc11
https://git.kernel.org/stable/c/ef81340401e8a371d6b17f69e76d861920972cfe
https://git.kernel.org/stable/c/5d8f805789072ea7fd39504694b7bd17e5f751c4

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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.