Memory leak in Linux kernel

1) Memory leak

EUVDB-ID: #VU30802

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15807

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within drivers/scsi/libsas/sas_expander.c when SAS expander discovery fails. This will cause a BUG and denial of service. A remote attacker can perform a denial of service attack.

Mitigation

Update to version 5.1.13.

Vulnerable software versions

Linux kernel: 5.1.1 - 5.1.12

External links

http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.13
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0541791453fbe7f42867e310e0c9eb6295364d
http://lists.debian.org/debian-lts-announce/2019/09/msg00014.html
http://lists.debian.org/debian-lts-announce/2019/09/msg00015.html
http://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
http://security.netapp.com/advisory/ntap-20191004-0001/
http://support.f5.com/csp/article/K52136304?utm_source=f5support&utm_medium=RSS

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.