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Last updated: 5/31/2016 6:56:23 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2008-4210

Original release date: 09/29/2008
Last revised: 10/29/2012


fs/open.c in the Linux kernel before 2.6.22 does not properly strip setuid and setgid bits when there is a write to a file, which allows local users to gain the privileges of a different group, and obtain sensitive information or possibly have unspecified other impact, by creating an executable file in a setgid directory through the (1) truncate or (2) ftruncate function in conjunction with memory-mapped I/O.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.6 MEDIUM
Impact Subscore: 6.4
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Provides unauthorized access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=463661
External Source: MLIST
Name: [oss-security] 20080924 Re: CVE request: kernel: open() call allows setgid bit when user is not in new file's group
External Source: DEBIAN
Name: DSA-1653
External Source: SUSE
Name: SUSE-SA:2008:057
External Source: OVAL
Name: oval:org.mitre.oval:def:6386
External Source: SUSE
Name: SUSE-SA:2008:051
External Source: REDHAT
Name: RHSA-2008:0972
External Source: CONFIRM
Name: http://bugzilla.kernel.org/show_bug.cgi?id=8420
External Source: OVAL
Name: oval:org.mitre.oval:def:9511
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
External Source: MLIST
Name: [oss-security] 20080924 CVE request: kernel: open() call allows setgid bit when user is not in new file's group
External Source: MANDRIVA
Name: MDVSA-2008:220
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
External Source: REDHAT
Name: RHSA-2008:0973
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commit;h=7b82dc0e64e93f430182f36b46b79fcee87d3532
External Source: SUSE
Name: SUSE-SR:2008:025
External Source: BID
Name: 31368
External Source: REDHAT
Name: RHSA-2008:0957
External Source: REDHAT
Name: RHSA-2008:0787
External Source: UBUNTU
Name: USN-679-1
External Source: SUSE
Name: SUSE-SA:2008:056
External Source: XF
Name: linux-kernel-open-privilege-escalation(45539)

References to Check Content

Identifier: oval:org.mitre.oval:def:6386
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5
Identifier: oval:org.mitre.oval:def:9511
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)