NULL pointer dereference in Linux kernel sw siw driver

1) NULL pointer dereference

EUVDB-ID: #VU91242

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-2023-52513

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 siw_accept_newconn(), siw_cm_work_handler() and siw_cm_llp_data_ready() functions in drivers/infiniband/sw/siw/siw_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

External links

http://git.kernel.org/stable/c/6e26812e289b374c17677d238164a5a8f5770594
http://git.kernel.org/stable/c/0d520cdb0cd095eac5d00078dfd318408c9b5eed
http://git.kernel.org/stable/c/81b7bf367eea795d259d0261710c6a89f548844d
http://git.kernel.org/stable/c/5cf38e638e5d01b68f9133968a85e8b3fd1ecf2f
http://git.kernel.org/stable/c/eeafc50a77f6a783c2c44e7ec3674a7b693e06f8
http://git.kernel.org/stable/c/53a3f777049771496f791504e7dc8ef017cba590

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.