National Cyber-Alert System
Vulnerability Summary for CVE-2007-6417
Original release date:12/18/2007
Last revised:11/15/2008
Source:
US-CERT/NIST
Overview
The shmem_getpage function (mm/shmem.c) in Linux kernel 2.6.11 through 2.6.23 does not properly clear allocated memory in some rare circumstances related to tmpfs, which might allow local users to read sensitive kernel data or cause a denial of service (crash).
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
- Official Statement from Red Hat (01/15/2009)
-
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and Red Hat Enterprise MRG.
It was addressed in Red Hat Enterprise Linux 5 via: https://rhn.redhat.com/errata/RHSA-2008-0885.html
References to Advisories, Solutions, and Tools
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External Source: UBUNTU
Name: USN-578-1
External Source: UBUNTU
Name: USN-574-1
External Source: BID
Name: 27694
External Source: REDHAT
Name: RHSA-2008:0885
External Source: MANDRIVA
Name: MDVSA-2008:112
External Source: MANDRIVA
Name: MDVSA-2008:086
External Source: DEBIAN
Name: DSA-1436
External Source: SECUNIA
Name: 32023
Type: Advisory
External Source: SECUNIA
Name: 28971
Type: Advisory
External Source: SECUNIA
Name: 28806
Type: Advisory
External Source: SECUNIA
Name: 28706
Type: Advisory
External Source: SECUNIA
Name: 28141
Type: Advisory
External Source: OSVDB
Name: 44120
External Source: MLIST
Name: [linux-kernel] 20071215 Re: [PATCH] tmpfs: restore missing clear_highpage
External Source: MLIST
Name: [linux-kernel] 20071212 Re: [PATCH] tmpfs: restore missing clear_highpage
External Source: MLIST
Name: [linux-kernel] 20071128 [PATCH] tmpfs: restore missing clear_highpage
External Source: SUSE
Name: SUSE-SA:2008:006
