#VU23022 Memory leak in Linux kernel


Published: 2019-11-27

Vulnerability identifier: #VU23022

Vulnerability risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19050

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 attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the "crypto_reportstat()" function in "crypto/crypto_user_stat.c" file. A local attacker can cause a denial of service condition (memory consumption) by triggering "crypto_reportstat_alg()" failures.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.3 - 5.3.11


External links
http://github.com/torvalds/linux/commit/c03b04dcdba1da39903e23cc4d072abf8f68f2dd
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/


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