National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2010-2023 Detail

Current Description

transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.4 MEDIUM
Vector: (AV:L/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.4


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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html
http://bugs.exim.org/show_bug.cgi?id=988
http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2
http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25 Patch
http://www.securityfocus.com/archive/1/511653/100/0/threaded
http://www.securityfocus.com/bid/40451
http://www.ubuntu.com/usn/USN-1060-1
http://www.vupen.com/english/advisories/2010/1402
http://www.vupen.com/english/advisories/2011/0364
https://bugzilla.redhat.com/show_bug.cgi?id=600093
https://exchange.xforce.ibmcloud.com/vulnerabilities/59043

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:exim:exim:4.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.20:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.21:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.22:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.23:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.24:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.30:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.31:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.32:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.33:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.34:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.40:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.41:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.42:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.43:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.44:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.50:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.51:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.52:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.53:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.60:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.61:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.62:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.63:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.64:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.65:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.66:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.67:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.68:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.69:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
4.71


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2010-2023
NVD Published Date:
06/07/2010
NVD Last Modified:
10/10/2018