Memory leak in Linux kernel

1) Memory leak

EUVDB-ID: #VU22569

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-2019-15916

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

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within register_queue_kobjects() function in net/core/net-sysfs.c, which will cause denial of service. A local user can perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.0 - 5.0.0

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:5.0.0:*:*:*:*:*:*:*

External links

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.1
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=895a5e96dbd6386c8e78e5b78e067dcc67b7f0ab
https://security.netapp.com/advisory/ntap-20191004-0001/

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.