National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2007-0822 Detail

Current Description

umount, when running with the Linux 2.6.15 kernel on Slackware Linux 10.2, allows local users to trigger a NULL dereference and application crash by invoking the program with a pathname for a USB pen drive that was mounted and then physically removed, which might allow the users to obtain sensitive information, including core file contents.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 1.9 LOW
Vector: (AV:L/AC:M/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.4

Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (02/09/2007)

Red Hat does not consider this issue to be a security vulnerability. On Red Hat Enterprise Linux processes that change their effective UID do not dump core by default when they receive a fatal signal. Therefore the NULL pointer dereference does not lead to an information leak.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://archives.neohapsis.com/archives/fulldisclosure/2007-02/0012.html
http://gotfault.wordpress.com/2007/01/18/umount-bug/ Exploit
http://www.mandriva.com/security/advisories?name=MDKSA-2007:053
http://www.securityfocus.com/bid/22850
http://www.securitytracker.com/id?1017729

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:2.6.15:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2007-0822
NVD Published Date:
02/07/2007
NVD Last Modified:
09/15/2010