CVE Vulnerabilities

CVE-2010-2960

NULL Pointer Dereference

Published: Sep 08, 2010 | Modified: Aug 11, 2020
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
7.2 IMPORTANT
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V3
Ubuntu

The keyctl_session_to_parent function in security/keys/keyctl.c in the Linux kernel 2.6.35.4 and earlier expects that a certain parent session keyring exists, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a KEYCTL_SESSION_TO_PARENT argument to the keyctl function.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Linux_kernel Linux * *
Linux Ubuntu lucid *
Linux-ec2 Ubuntu karmic *
Linux-ec2 Ubuntu lucid *
Linux-ec2 Ubuntu maverick *
Linux-lts-backport-maverick Ubuntu lucid *
Linux-mvl-dove Ubuntu karmic *
Linux-mvl-dove Ubuntu lucid *
Linux-mvl-dove Ubuntu maverick *
Linux-ti-omap4 Ubuntu maverick *

Potential Mitigations

References