Memory leak in Linux kernel - CVE-2019-19066

Vulnerability identifier: #VU23027

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-19066

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to memory leak within the "bfad_im_get_stats()" function in "drivers/scsi/bfa/bfad_attr.c" file. A local attacker can cause a denial of service condition (memory consumption) by triggering "bfa_port_get_stats()" failures.

Linux kernel
Slackware Linux
Fedora
linux-4.4.217/kernel-generic
linux-4.4.217/kernel-huge
linux-4.4.217/kernel-modules
linux-4.4.217/kernel-headers
kernel

Install update from vendor's website.

Linux kernel - update to 5.3.12
linux-4.4.217/kernel-generic - update to 4.4.217
linux-4.4.217/kernel-huge - update to 4.4.217
linux-4.4.217/kernel-modules - update to 4.4.217
linux-4.4.217/kernel-headers - update to 4.4.217_smp
kernel - addressed in versions 5.3.12-200.fc30, 5.3.12-300.fc31

• https://github.com/torvalds/linux/commit/0e62395da2bd5166d7c9e14cbc7503b256a34cb0
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O3PSDE6PTOTVBK2YTKB2TFQP2SUBVSNF/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PY7LJMSPAGRIKABJPDKQDTXYW3L5RX2T/

• Multiple vulnerabilities in Linux kernel
• Slackware Linux update for kernel
• Fedora 31 update for kernel
• Fedora 30 update for kernel