CVE Vulnerabilities

CVE-2010-2798

NULL Pointer Dereference

Published: Sep 08, 2010 | Modified: Aug 14, 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 gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c.

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 * *
Red Hat Enterprise Linux 5 RedHat kernel-0:2.6.18-194.17.1.el5 *
Red Hat Enterprise Linux 5.3.Z - Server Only RedHat kernel-0:2.6.18-128.23.1.el5 *
Red Hat Enterprise Linux 5.4.Z - Server Only RedHat kernel-0:2.6.18-164.25.1.el5 *
Linux Ubuntu hardy *
Linux Ubuntu jaunty *
Linux Ubuntu karmic *
Linux Ubuntu upstream *
Linux-ec2 Ubuntu karmic *
Linux-ec2 Ubuntu lucid *
Linux-ec2 Ubuntu maverick *
Linux-fsl-imx51 Ubuntu karmic *
Linux-fsl-imx51 Ubuntu lucid *
Linux-lts-backport-maverick Ubuntu lucid *

Potential Mitigations

References