Out-of-bounds write in Linux kernel - CVE-2019-14895

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Main Vulnerability Database Vulnerabilities #VU28406

Out-of-bounds write in Linux kernel - CVE-2019-14895

Published: November 29, 2019 / Updated: June 1, 2020


Vulnerability identifier: #VU28406
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-2019-14895
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

A heap-based buffer overflow was discovered in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code.


Affected software

Linux kernel
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Slackware Linux
Fedora
Red Hat Virtualization Host
kernel (Red Hat package)
kernel-rt (Red Hat package)
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-alt (Red Hat package)
kernel

How to mitigate CVE-2019-14895

Install update from vendor's website.

Linux kernel - addressed in versions 4.4.210, 4.9.210, 4.14.165, 4.19.96, 5.5
kernel (Red Hat package) - addressed in versions 3.10.0-327.85.1.el7, 3.10.0-514.73.1.el7, 3.10.0-957.46.1.el7, 3.10.0-1062.12.1.el7, 4.18.0-80.16.1.el8_0, 4.18.0-147.5.1.el8_1
kernel-rt (Red Hat package) - addressed in versions 3.10.0-1062.12.1.rt56.1042.el7, 4.18.0-147.5.1.rt24.98.el8_1
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-alt (Red Hat package) - update to 4.14.0-115.19.1.el7a
kernel - addressed in versions 5.3.13-200.fc30, 5.3.13-300.fc31

External References

Related Security Bulletins