Out-of-bounds write in Linux kernel - CVE-2019-14896

Vulnerability identifier: #VU28409

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-14896

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP.

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 - addressed in versions 4.4.212, 4.9.212, 4.14.169, 4.19.100, 5.4.16, 5.5
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 5.3.13-200.fc30, 5.3.13-300.fc31

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.212
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.212
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.169
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.100
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.16

• Out-of-bounds write in Linux kernel
• Slackware Linux update for kernel
• Fedora 31 update for kernel
• Fedora 30 update for kernel