Vulnerability identifier: #VU92038

Vulnerability risk: Low

CVSSv3.1: 4.8 [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-2024-26826

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 __mptcp_retransmit_pending_data() function in net/mptcp/protocol.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

---

External links
http://git.kernel.org/stable/c/6f95120f898b40d13fd441225ef511307853c9c2
http://git.kernel.org/stable/c/6673d9f1c2cd984390550dbdf7d5ae07b20abbf8
http://git.kernel.org/stable/c/b609c783c535493aa3fca22c7e40a120370b1ca5
http://git.kernel.org/stable/c/624902eab7abcb8731b333ec73f206d38d839cd8
http://git.kernel.org/stable/c/b6c620dc43ccb4e802894e54b651cf81495e9598

---

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.