#VU99455 Use of uninitialized resource in Linux kernel - CVE-2024-50087

Vulnerability identifier: #VU99455

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-50087

CWE-ID: CWE-908

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 perform a denial of service (DoS) attack.

The vulnerability exists due to use of uninitialized resource within the replay_one_name() and check_item_in_log() functions in fs/btrfs/tree-log.c. A local user 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/b37de9491f140a0ff125c27dd1050185c3accbc1
https://git.kernel.org/stable/c/7fc7c47b9ba0cf2d192f2117a64b24881b0b577f
https://git.kernel.org/stable/c/1ec28de5e476913ae51f909660b4447eddb28838
https://git.kernel.org/stable/c/2ab5e243c2266c841e0f6904fad1514b18eaf510

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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.