Vulnerability Name:

CCN-118959

Published:2016-11-15
Updated:2016-11-15
Summary:Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference. By using an application that uses malicious interaction with the keyctl usermode interface, a local authenticated attacker could exploit this vulnerability to cause the system to crash.
CVSS v3 Severity:5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
5.0 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: Full-Disclosure Mailing List, Tue, 15 Nov 2016 08:52:50 +0100
OS-S 2016-21 - Local DoS: Linux Kernel Nullpointer Dereference via keyctl

Source: XF
Type: UNKNOWN
linux-kernel-keyctlnullpointer-dos(118959)

Source: CCN
Type: Packet Storm Security [11-15-2016]
Linux Kernel Keyctl Null Pointer Dereference

Source: CCN
Type: Linux Kernel Web site
The Linux Kernel Archives

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    linux linux kernel *