Improper privilege management in Linux kernel tracefs

1) Improper privilege management

EUVDB-ID: #VU93733

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-36963

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local user to read and manipulate data.

The vulnerability exists due to improperly imposed permissions within the DEFINE_SPINLOCK(), tracefs_apply_options() and tracefs_d_revalidate() functions in fs/tracefs/inode.c, within the eventfs_remount() function in fs/tracefs/event_inode.c. A local user can read and manipulate data.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/5f91fc82794d4a6e41cdcd02d00baa377d94ca78
http://git.kernel.org/stable/c/414fb08628143203d29ccd0264b5a83fb9523c03
http://git.kernel.org/stable/c/baa23a8d4360d981a49913841a726edede5cdd54

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.