Information disclosure in Linux kernel - CVE-2017-14140

Vulnerability identifier: #VU10718

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-14140

CWE-ID: CWE-264

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.

The weakness exists in mm/migrate.c due to improper check of the effective UID. A local attacker can learn the memory layout of a setuid executable despite ASLR and expose sensitive information.

Linux kernel
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time for NFV
Ubuntu

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

Update to version 4.12.9.

kernel (Red Hat package) - update to 3.10.0-862.el7
kernel-rt (Red Hat package) - update to 3.10.0-862.rt56.804.el7

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=197e7e521384a23b9e5851...

• Ubuntu update for Linux kernel
• Ubuntu update for Linux kernel (Trusty HWE)
• Ubuntu update for Linux kernel
• Ubuntu update for Linux kernel (Xenial HWE)
• Red Hat update for kernel
• Red Hat update for kernel-rt