Improper error handling in Linux kernel btrfs

1) Improper error handling

EUVDB-ID: #VU97543

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46752

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper error handling within the update_ref_for_cow() function in fs/btrfs/ctree.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

External links

http://git.kernel.org/stable/c/b50857b96429a09fd3beed9f7f21b7bb7c433688
http://git.kernel.org/stable/c/0fbac73a97286a7ec72229cb9b42d760a2c717ac
http://git.kernel.org/stable/c/41a0f85e268d72fe04f731b8ceea4748c2d65491
http://git.kernel.org/stable/c/f895db00c65e5d77c437cce946da9ec29dcdf563
http://git.kernel.org/stable/c/b56329a782314fde5b61058e2a25097af7ccb675

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.