Stack-based buffer overflow in Linux kernel - CVE-2016-8399

Vulnerability identifier: #VU1255

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-2016-8399

CWE-ID: CWE-121

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause kernel panic or escalate privileges.

The vulnerability exists due to a boundary error when crating an ICMP header. A local user can create a very short ICMP header and execute arbitrary code within the contest of the kernel.

Successful exploitation of the vulnerability may allow a local user to escalate privileges on the system.

Linux kernel
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux Server - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server (for IBM Power LE) - 4 Year Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server - 4 Year Extended Update Support
Fedora

kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel
Red Hat Virtualization Host

Update to version 4.8.14 or 4.4.38.

Linux kernel - update to 4.1.37
kernel (Red Hat package) - addressed in versions 2.6.32-573.41.1.el6, 3.10.0-693.5.2.el7
kernel-rt (Red Hat package) - update to 3.10.0-693.5.2.rt56.626.el7
kernel - addressed in versions 4.8.14-100.fc23, 4.8.14-200.fc24, 4.8.14-300.fc25

• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.38
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.37

• Two vulnerabilities in Linux kernel
• Red Hat update for kernel-rt
• Red Hat update for kernel
• Red Hat update for kernel
• Fedora 25 update for kernel
• Fedora 24 update for kernel
• Fedora 23 update for kernel