National Cyber-Alert System
Vulnerability Summary for CVE-2008-2931
Original release date:07/09/2008
Last revised:02/12/2009
Source:
US-CERT/NIST
Overview
The do_change_type function in fs/namespace.c in the Linux kernel before 2.6.22 does not verify that the caller has the CAP_SYS_ADMIN capability, which allows local users to gain privileges or cause a denial of service by modifying the properties of a mountpoint.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
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: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=454388
External Source: XF
Name: linux-kernel-dochangetype-priv-escalation(43696)
External Source: UBUNTU
Name: USN-637-1
External Source: BID
Name: 30126
External Source: REDHAT
Name: RHSA-2008:0885
External Source: MLIST
Name: [oss-security] 20080708 Re: CVE-2008-2931 kernel: missing check before setting mount propagation
External Source: MLIST
Name: [oss-security] 20080708 CVE-2008-2931 kernel: missing check before setting mount propagation
External Source: DEBIAN
Name: DSA-1630
External Source: SECUNIA
Name: 32759
External Source: SECUNIA
Name: 32023
External Source: SECUNIA
Name: 31614
External Source: SECUNIA
Name: 31551
External Source: SUSE
Name: SUSE-SR:2008:025
External Source: SUSE
Name: SUSE-SA:2008:049
External Source: SUSE
Name: SUSE-SA:2008:038
External Source: SUSE
Name: SUSE-SA:2008:035
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=ee6f958291e2a768fd727e7a67badfff0b67711a
