#VU98971 NULL pointer dereference in Linux kernel - CVE-2024-47749

Vulnerability identifier: #VU98971

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-2024-47749

CWE-ID: CWE-476

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 NULL pointer dereference within the act_establish() and act_open_rpl() functions in drivers/infiniband/hw/cxgb4/cm.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/dd598ac57dcae796cb58551074660c39b43fb155
https://git.kernel.org/stable/c/b11318dc8a1ec565300bb1a9073095af817cc508
https://git.kernel.org/stable/c/39cb9f39913566ec5865581135f3e8123ad1aee1
https://git.kernel.org/stable/c/0d50ae281a1712b9b2ca72830a96b8f11882358d
https://git.kernel.org/stable/c/54aaa3ed40972511e423b604324b881425b9ff1e
https://git.kernel.org/stable/c/b9c94c8ba5a713817cffd74c4bacc05187469624
https://git.kernel.org/stable/c/e766e6a92410ca269161de059fff0843b8ddd65f

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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.