Heap-based buffer overflow in Linux kernel - CVE-2019-14815

Vulnerability identifier: #VU21445

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-2019-14815

CWE-ID: CWE-122

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a boundary error within the mwifiex_set_uap_rates() 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.

Linux kernel
Red Hat Enterprise Linux for Power 9
Red Hat Enterprise Linux for IBM System z (Structure A)
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for ARM 64
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
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
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Fedora
kernel-alt (Red Hat package)
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel
kernel-headers
kernel-tools

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-alt (Red Hat package) - update to 4.14.0-115.17.1.el7a
kernel (Red Hat package) - update to 4.18.0-147.5.1.el8_1
kernel-rt (Red Hat package) - update to 4.18.0-147.5.1.rt24.98.el8_1
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

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.17
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.194
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.194
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.75
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.146
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3

• Multiple vulnerabilities in Linux kernel Marvell Wi-Fi chip driver
• Red Hat Enterprise Linux 7 update for kernel-alt
• Red Hat Enterprise Linux 8 update for kernel-rt
• Red Hat Enterprise Linux 8 update for kernel
• Fedora 30 update for kernel, kernel-headers, kernel-tools
• Fedora 29 update for kernel, kernel-headers, kernel-tools