NULL pointer dereference in Linux kernel - CVE-2017-15274

Vulnerability identifier: #VU10721

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2017-15274

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux Server - Extended Update Support
SUSE Linux
Ubuntu

kernel (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists in he security/keys/keyctl.c due to a NULL pointer dereference. A local attacker can create a specially crafted add_key or keyctl system call and cause a denial of service.

Update to version 4.11.5.

• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5649645d725c73df430242...