Out-of-bounds read in Linux kernel jfs

1) Out-of-bounds read

EUVDB-ID: #VU96113

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-2024-43858

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to an out-of-bounds read error within the diSync() and diRead() functions in fs/jfs/jfs_imap.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/8d8f9a477de0d7962342eedf2a599215b7c63d28
http://git.kernel.org/stable/c/ff14eadc278663cac69d57d3ca7fb2f394e1f8a7
http://git.kernel.org/stable/c/6aa6892a90a5a7fabffe5692ab9f06a7a46c6e42
http://git.kernel.org/stable/c/f73f969b2eb39ad8056f6c7f3a295fa2f85e313a

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.