NULL pointer dereference in Linux kernel rds

1) NULL pointer dereference

EUVDB-ID: #VU90842

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-2023-52573

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 rds_rdma_cm_event_handler_cmn() function in net/rds/rdma_transport.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/812da2a08dc5cc75fb71e29083ea20904510ac7a
http://git.kernel.org/stable/c/f515112e833791001aaa8ab886af3ca78503617f
http://git.kernel.org/stable/c/ea82139e6e3561100d38d14401d57c0ea93fc07e
http://git.kernel.org/stable/c/51fa66024a5eabf270164f2dc82a48ffb35a12e9
http://git.kernel.org/stable/c/069ac51c37a6f07a51f7134d8c34289075786a35
http://git.kernel.org/stable/c/f1d95df0f31048f1c59092648997686e3f7d9478

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.