#VU69764 Memory leak in Linux kernel


Published: 2022-11-30

Vulnerability identifier: #VU69764

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/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-2022-3633

CWE-ID: CWE-401

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 DoS attack.

The vulnerability exists due memory leak within the j1939_session_destroy() function in net/can/j1939/transport.c. A local user can force the system to leak memory and perform denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel:


External links
http://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git/commit/?id=8c21c54a53ab21842f5050fa090f26b03c0313d6
http://lists.debian.org/debian-lts-announce/2022/11/msg00001.html


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.


Latest bulletins with this vulnerability