#VU108478 Improper locking in Linux kernel - CVE-2023-53107

Vulnerability identifier: #VU108478

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-2023-53107

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 veth_convert_skb_to_xdp_buff() function in drivers/net/veth.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1, 6.1 rc1, 6.1 rc3, 6.1 rc7, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6, 6.1.7, 6.1.8, 6.1.9, 6.1.10, 6.1.11, 6.1.12, 6.1.13, 6.1.14, 6.1.15, 6.1.16, 6.1.17, 6.1.18, 6.1.19, 6.1.20, 6.2, 6.2 rc5, 6.2 rc7, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.3 rc1, 6.3 rc4, 6.3 rc6

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External links
https://git.kernel.org/stable/c/6e755b56896df48b0fae0db275e148f8d8aa7d6f
https://git.kernel.org/stable/c/717d20710596b5b26595ede454d1105fa176f4a4
https://git.kernel.org/stable/c/7c10131803e45269ddc6c817f19ed649110f3cae
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.21
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3

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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.