Memory leak in Linux kernel hid driver

1) Memory leak

EUVDB-ID: #VU69123

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-2022-27950

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak within the drivers/hid/hid-elo.c in the Linux kernel. A local user can perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.16.1 - 5.16.10

External links

http://www.openwall.com/lists/oss-security/2022/03/13/1
http://github.com/torvalds/linux/commit/817b8b9c5396d2b2d92311b46719aad5d3339dbe
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.11
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=817b8b9c5396d2b2d92311b46719aad5d3339dbe

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.