#VU105028 Improper locking in Linux kernel - CVE-2024-57994

Vulnerability identifier: #VU105028

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-2024-57994

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 pfifo_fast_change_tx_queue_len() function in net/sched/sch_generic.c, within the tun_queue_resize() function in drivers/net/tun.c, within the tap_queue_resize() function in drivers/net/tap.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.13 - 6.13.1

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External links
https://git.kernel.org/stable/c/3257dac521d0ac6653108c755141dce634bb8ff2
https://git.kernel.org/stable/c/a126061c80d5efb4baef4bcf346094139cd81df6
https://git.kernel.org/stable/c/e74801b7628dc52b17471aec729bc675479ddc73
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?