#VU90192 Use-after-free in Linux kernel - CVE-2024-26928

Vulnerability identifier: #VU90192

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-2024-26928

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 remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the cifs_debug_files_proc_show() function in fs/smb/client/cifs_debug.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.

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/229042314602db62559ecacba127067c22ee7b88
https://git.kernel.org/stable/c/a65f2b56334ba4dc30bd5ee9ce5b2691b973344d
https://git.kernel.org/stable/c/3402faf78b2516b0af1259baff50cc8453ef0bd1
https://git.kernel.org/stable/c/ca545b7f0823f19db0f1148d59bc5e1a56634502

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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.