#VU100746 Improper locking in Linux kernel - CVE-2024-53044
Vulnerability identifier: #VU100746
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-2024-53044
CWE-ID:
CWE-667
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 improper locking within the tcf_block_get_ext() function in net/sched/cls_api.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Linux kernel: 6.11, 6.11.1, 6.11.2, 6.11.3, 6.11.4, 6.11.5, 6.11.6
External links
https://git.kernel.org/stable/c/8966eb69a143b1c032365fe84f2815f3c46f2590
https://git.kernel.org/stable/c/a13e690191eafc154b3f60afe9ce35aa9b9128b4
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.7
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12
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.
