OS-S 2016-21 – Local DoS: Linux Kernel Nullpointer Dereference via keyctl

Posted by Ralf Spenneberg on Nov 15

OS-S Security Advisory 2016-21
Local DoS: Linux Kernel Nullpointer Dereference via keyctl

Date:
October 31th, 2016
Authors:
Sergej Schumilo, Ralf Spenneberg, Hendrik Schwartke
CVE:
Not yet assigned
CVSS:
4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C)
Severity:
Potentially critical. If the kernel is compiled with the option
“Panic-On-Oops”, this vulnerability may lead to a kernel panic.
Ease of Exploitation:
Trivial
Vulnerability Type:
Local unprivileged…