CVE-2010-2023

Published: Jun 7, 2010Modified: Apr 29, 2026

4.4

Vector

AV:L/AC:M/Au:N/C:P/I:P/A:P

Exploitability: 3.4 / Impact: 6.4

Source: NVD

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.

Affected (33)

Products: Exim: Exim

1 product

Configuration A

33 vulnerable

Vulnerable Software	Affected Versions
Exim Exim	Up to 4.71
Exim Exim	Version 4.10
Exim Exim	Version 4.20
Exim Exim	Version 4.21
Exim Exim	Version 4.22
Exim Exim	Version 4.23
Exim Exim	Version 4.24
Exim Exim	Version 4.30
Exim Exim	Version 4.31
Exim Exim	Version 4.32
Exim Exim	Version 4.33
Exim Exim	Version 4.34
Exim Exim	Version 4.40
Exim Exim	Version 4.41
Exim Exim	Version 4.42
Exim Exim	Version 4.43
Exim Exim	Version 4.44
Exim Exim	Version 4.50
Exim Exim	Version 4.51
Exim Exim	Version 4.52
Exim Exim	Version 4.53
Exim Exim	Version 4.54
Exim Exim	Version 4.60
Exim Exim	Version 4.61
Exim Exim	Version 4.62
Exim Exim	Version 4.63
Exim Exim	Version 4.64
Exim Exim	Version 4.65
Exim Exim	Version 4.66
Exim Exim	Version 4.67
Exim Exim	Version 4.68
Exim Exim	Version 4.69
Exim Exim	Version 4.70

Related CWEs

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (36)

http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html

Source: cve@mitre.org

http://bugs.exim.org/show_bug.cgi?id=988

Source: cve@mitre.org

http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html

Source: cve@mitre.org

http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html

Source: cve@mitre.org

http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html

Source: cve@mitre.org

http://secunia.com/advisories/40019

Source: cve@mitre.org

Vendor Advisory

http://secunia.com/advisories/40123

Source: cve@mitre.org

http://secunia.com/advisories/43243

Source: cve@mitre.org

http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2

Source: cve@mitre.org

http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25

Source: cve@mitre.org

Patch

http://www.securityfocus.com/archive/1/511653/100/0/threaded

Source: cve@mitre.org

http://www.securityfocus.com/bid/40451

Source: cve@mitre.org

http://www.ubuntu.com/usn/USN-1060-1

Source: cve@mitre.org

http://www.vupen.com/english/advisories/2010/1402

Source: cve@mitre.org

http://www.vupen.com/english/advisories/2011/0364

Source: cve@mitre.org

https://bugzilla.redhat.com/show_bug.cgi?id=600093

Source: cve@mitre.org

https://exchange.xforce.ibmcloud.com/vulnerabilities/59043

Source: cve@mitre.org

http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://bugs.exim.org/show_bug.cgi?id=988

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://secunia.com/advisories/40019

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://secunia.com/advisories/40123

Source: af854a3a-2127-422b-91ae-364da2661108

http://secunia.com/advisories/43243

Source: af854a3a-2127-422b-91ae-364da2661108

http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2

Source: af854a3a-2127-422b-91ae-364da2661108

http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

http://www.securityfocus.com/archive/1/511653/100/0/threaded

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/40451

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.ubuntu.com/usn/USN-1060-1

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.vupen.com/english/advisories/2010/1402

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.vupen.com/english/advisories/2011/0364

Source: af854a3a-2127-422b-91ae-364da2661108

https://bugzilla.redhat.com/show_bug.cgi?id=600093

Source: af854a3a-2127-422b-91ae-364da2661108

https://exchange.xforce.ibmcloud.com/vulnerabilities/59043

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.