Privilege escalation in Linux kernel - CVE-2016-4565

Vulnerability identifier: #VU3829

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-2016-4565

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.

The weakness exists due to it incorrectly relies on the write system call. A local attacker can cause the service to crash or gain root privileges.

Linux kernel
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
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 Server - Extended Update Support

kernel (Red Hat package)

Update to version 4.5.3.

kernel (Red Hat package) - addressed in versions 2.6.32-220.67.1.el6, 2.6.32-358.72.1.el6, 2.6.32-431.73.2.el6, 2.6.32-504.51.1.el6, 2.6.32-573.32.1.el6, 2.6.32-642.3.1.el6, 3.10.0-229.40.1.el7

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6bd18f57aad1a2d1ef40e646d03ed0f2515c9e3

• Multiple vulnerabilities in Linux Kernel
• Red Hat update for kernel
• Red Hat update for kernel
• Red Hat Enterprise Linux 6 update for kernel
• Red Hat Enterprise Linux 6 update for kernel
• Red Hat Enterprise Linux 6 update for kernel
• Red Hat Enterprise Linux 7 update for kernel
• Red Hat Enterprise Linux 6 update for kernel