Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2010-2023 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html	CVE
http://bugs.exim.org/show_bug.cgi?id=988	CVE
http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html	CVE
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html	CVE
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html	CVE
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html	CVE
https://bugzilla.redhat.com/show_bug.cgi?id=600093	CVE
http://secunia.com/advisories/40019	CVE	Vendor Advisory
http://secunia.com/advisories/40123	CVE
http://secunia.com/advisories/43243	CVE
https://exchange.xforce.ibmcloud.com/vulnerabilities/59043	CVE
http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2	CVE
http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25	CVE	Patch
http://www.securityfocus.com/archive/1/511653/100/0/threaded	CVE
http://www.securityfocus.com/bid/40451	CVE
http://www.ubuntu.com/usn/USN-1060-1	CVE
http://www.vupen.com/english/advisories/2010/1402	CVE
http://www.vupen.com/english/advisories/2011/0364	CVE
http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html	[email protected]
http://bugs.exim.org/show_bug.cgi?id=988	[email protected]
http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html	[email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html	[email protected]
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html	[email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=600093	[email protected]
http://secunia.com/advisories/40019	[email protected]	Vendor Advisory
http://secunia.com/advisories/40123	[email protected]
http://secunia.com/advisories/43243	[email protected]
https://exchange.xforce.ibmcloud.com/vulnerabilities/59043	[email protected]
http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2	[email protected]
http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25	[email protected]	Patch
http://www.securityfocus.com/archive/1/511653/100/0/threaded	[email protected]
http://www.securityfocus.com/bid/40451	[email protected]
http://www.ubuntu.com/usn/USN-1060-1	[email protected]
http://www.vupen.com/english/advisories/2010/1402	[email protected]
http://www.vupen.com/english/advisories/2011/0364	[email protected]

see all 36 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-362	Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')	[email protected]

Affected Products

Product	Versions
exim exim	<= 4.71 4.10 4.20 4.21 4.22
CPE cpe:2.3:a:exim:exim:::::::: cpe:2.3:a:exim:exim:4.10:::::::* cpe:2.3:a:exim:exim:4.20:::::::* cpe:2.3:a:exim:exim:4.21:::::::* cpe:2.3:a:exim:exim:4.22:::::::* cpe:2.3:a:exim:exim:4.23:::::::* cpe:2.3:a:exim:exim:4.24:::::::* cpe:2.3:a:exim:exim:4.30:::::::* cpe:2.3:a:exim:exim:4.31:::::::* cpe:2.3:a:exim:exim:4.32:::::::* cpe:2.3:a:exim:exim:4.33:::::::* cpe:2.3:a:exim:exim:4.34:::::::* cpe:2.3:a:exim:exim:4.40:::::::* cpe:2.3:a:exim:exim:4.41:::::::* cpe:2.3:a:exim:exim:4.42:::::::* cpe:2.3:a:exim:exim:4.43:::::::* cpe:2.3:a:exim:exim:4.44:::::::* cpe:2.3:a:exim:exim:4.50:::::::* cpe:2.3:a:exim:exim:4.51:::::::* cpe:2.3:a:exim:exim:4.52:::::::* cpe:2.3:a:exim:exim:4.53:::::::* cpe:2.3:a:exim:exim:4.54:::::::* cpe:2.3:a:exim:exim:4.60:::::::* cpe:2.3:a:exim:exim:4.61:::::::* cpe:2.3:a:exim:exim:4.62:::::::* cpe:2.3:a:exim:exim:4.63:::::::* cpe:2.3:a:exim:exim:4.64:::::::* cpe:2.3:a:exim:exim:4.65:::::::* cpe:2.3:a:exim:exim:4.66:::::::* cpe:2.3:a:exim:exim:4.67:::::::* cpe:2.3:a:exim:exim:4.68:::::::* cpe:2.3:a:exim:exim:4.69:::::::* cpe:2.3:a:exim:exim:4.70:::::::* Remediation No remediation found in references.

Product

Versions

exim exim

<= 4.71

4.10

4.20

4.21

4.22

CPE

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.10:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.20:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.21:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.22:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.23:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.24:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.30:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.31:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.32:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.33:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.34:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.40:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.41:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.42:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.43:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.44:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.50:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.51:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.52:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.53:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.54:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.60:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.61:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.62:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.63:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.64:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.65:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.66:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.67:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.68:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.69:*:*:*:*:*:*:*
cpe:2.3:a:exim:exim:4.70:*:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	[email protected]
Apr 29, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Oct 10, 2018	CVE Modified	[email protected]
Aug 17, 2017	CVE Modified	[email protected]
Jun 7, 2010	Initial Analysis	[email protected]