Buffer overflow in Linux kernel - CVE-2019-15117
Published: September 6, 2019
Vulnerability identifier: #VU20914
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-15117
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to the "parse_audio_mixer_unit" in "sound/usb/mixer.c" mishandles a short descriptor. A local authenticated user can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Linux kernel
Slackware Linux
linux-4.4.199/kernel-generic
linux-4.4.199/kernel-huge
linux-4.4.199/kernel-modules
linux-4.4.199/kernel-headers
Slackware Linux
linux-4.4.199/kernel-generic
linux-4.4.199/kernel-huge
linux-4.4.199/kernel-modules
linux-4.4.199/kernel-headers
How to mitigate CVE-2019-15117
Install updates from vendor's website.
Linux kernel - update to 5.2.10
linux-4.4.199/kernel-generic - update to 4.4.199
linux-4.4.199/kernel-huge - update to 4.4.199
linux-4.4.199/kernel-modules - update to 4.4.199
linux-4.4.199/kernel-headers - update to 4.4.199_smp
linux-4.4.199/kernel-generic - update to 4.4.199
linux-4.4.199/kernel-huge - update to 4.4.199
linux-4.4.199/kernel-modules - update to 4.4.199
linux-4.4.199/kernel-headers - update to 4.4.199_smp