Heap-based buffer overflow in Linux kernel - CVE-2019-14816

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Main Vulnerability Database Vulnerabilities #VU21444

Heap-based buffer overflow in Linux kernel - CVE-2019-14816

Published: September 30, 2019


Vulnerability identifier: #VU21444
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-2019-14816
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the mwifiex_set_wmm_params() function in the Marvell Wi-Fi chip driver in Linux kernel. A local user can run a specially crafted application to trigger a heap-based buffer overflow and execute arbitrary code on the system with elevated privileges.



Affected software

Linux kernel
Red Hat Enterprise Linux for IBM System z (Structure A)
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 9
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Virtualization Host - Extended Update Support 4.2 for RHEL
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Slackware Linux
Fedora
MRG Realtime
kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
linux-4.4.199/kernel-modules
linux-4.4.199/kernel-huge
linux-4.4.199/kernel-generic
linux-4.4.199/kernel-headers
kernel-alt (Red Hat package)
kernel
kernel-headers
kernel-tools
Red Hat Virtualization Host

How to mitigate CVE-2019-14816

Install updates from vendor's repository.

Linux kernel - addressed in versions 4.4.194, 4.9.194, 4.14.146, 4.19.75, 5.2.17
kernel (Red Hat package) - addressed in versions 3.10.0-327.85.1.el7, 3.10.0-514.73.1.el7, 3.10.0-693.65.1.el7, 3.10.0-862.51.1.el7, 3.10.0-957.46.1.el7, 3.10.0-1062.12.1.el7, 4.18.0-80.15.1.el8_0, 4.18.0-147.5.1.el8_1
kernel-rt (Red Hat package) - addressed in versions 3.10.0-693.65.1.rt56.663.el6rt, 3.10.0-1062.12.1.rt56.1042.el7, 4.18.0-147.5.1.rt24.98.el8_1
linux-4.4.199/kernel-modules - update to 4.4.199
linux-4.4.199/kernel-huge - update to 4.4.199
linux-4.4.199/kernel-generic - update to 4.4.199
linux-4.4.199/kernel-headers - update to 4.4.199_smp
kernel-alt (Red Hat package) - update to 4.14.0-115.17.1.el7a
kernel - addressed in versions 5.2.11-100.fc29, 5.2.11-200.fc30
kernel-headers - addressed in versions 5.2.11-100.fc29, 5.2.11-200.fc30
kernel-tools - addressed in versions 5.2.11-100.fc29, 5.2.11-200.fc30

External References

Related Security Bulletins