#VU90414 NULL pointer dereference in Linux kernel - CVE-2023-52745

Vulnerability identifier: #VU90414

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-2023-52745

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 ipoib_intf_init() function in drivers/infiniband/ulp/ipoib/ipoib_main.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/4a779187db39b2f32d048a752573e56e4e77807f
https://git.kernel.org/stable/c/b1afb666c32931667c15ad1b58e7203f0119dcaf
https://git.kernel.org/stable/c/1b4ef90cbcfa603b3bb536fbd6f261197012b6f6
https://git.kernel.org/stable/c/7197460dcd43ff0e4a502ba855dd82d37c2848cc
https://git.kernel.org/stable/c/e632291a2dbce45a24cddeb5fe28fe71d724ba43

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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.