CVE-2010-2023
Summary
| CVE | CVE-2010-2023 |
|---|---|
| State | PUBLISHED |
| Assigner | mitre |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2010-06-07 17:12:48 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
MediumAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:L/AC:M/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Exim | Exim | 4.10 | All | All | All |
| Application | Exim | Exim | 4.20 | All | All | All |
| Application | Exim | Exim | 4.21 | All | All | All |
| Application | Exim | Exim | 4.22 | All | All | All |
| Application | Exim | Exim | 4.23 | All | All | All |
| Application | Exim | Exim | 4.24 | All | All | All |
| Application | Exim | Exim | 4.30 | All | All | All |
| Application | Exim | Exim | 4.31 | All | All | All |
| Application | Exim | Exim | 4.32 | All | All | All |
| Application | Exim | Exim | 4.33 | All | All | All |
| Application | Exim | Exim | 4.34 | All | All | All |
| Application | Exim | Exim | 4.40 | All | All | All |
| Application | Exim | Exim | 4.41 | All | All | All |
| Application | Exim | Exim | 4.42 | All | All | All |
| Application | Exim | Exim | 4.43 | All | All | All |
| Application | Exim | Exim | 4.44 | All | All | All |
| Application | Exim | Exim | 4.50 | All | All | All |
| Application | Exim | Exim | 4.51 | All | All | All |
| Application | Exim | Exim | 4.52 | All | All | All |
| Application | Exim | Exim | 4.53 | All | All | All |
| Application | Exim | Exim | 4.54 | All | All | All |
| Application | Exim | Exim | 4.60 | All | All | All |
| Application | Exim | Exim | 4.61 | All | All | All |
| Application | Exim | Exim | 4.62 | All | All | All |
| Application | Exim | Exim | 4.63 | All | All | All |
| Application | Exim | Exim | 4.64 | All | All | All |
| Application | Exim | Exim | 4.65 | All | All | All |
| Application | Exim | Exim | 4.66 | All | All | All |
| Application | Exim | Exim | 4.67 | All | All | All |
| Application | Exim | Exim | 4.68 | All | All | All |
| Application | Exim | Exim | 4.69 | All | All | All |
| Application | Exim | Exim | 4.70 | All | All | All |
| Application | Exim | Exim | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [security-announce] SUSE Security Summary Report: SUSE-SR:2010:014 | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| NEOHAPSIS - Peace of Mind Through Integrity and Insight | af854a3a-2127-422b-91ae-364da2661108 | archives.neohapsis.com | |
| [SECURITY] Fedora 13 Update: exim-4.72-1.fc13 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| [SECURITY] Fedora 12 Update: exim-4.72-1.fc12 | af854a3a-2127-422b-91ae-364da2661108 | lists.fedoraproject.org | |
| Fedora update for exim - Secunia.com | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | |
| IBM X-Force Exchange | af854a3a-2127-422b-91ae-364da2661108 | exchange.xforce.ibmcloud.com | |
| USN-1060-1: Exim vulnerabilities | Ubuntu | af854a3a-2127-422b-91ae-364da2661108 | www.ubuntu.com | |
| Exim Sticky Mail Directory Local Privilege Escalation Vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Bug 600093 – CVE-2010-2023 exim: hard-link following vulnerability in mailbox handling | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | |
| [exim] Diff of /exim-src/src/transports/appendfile.c | af854a3a-2127-422b-91ae-364da2661108 | vcs.exim.org | Patch |
| [exim] Contents of /exim-doc/doc-txt/ChangeLog | af854a3a-2127-422b-91ae-364da2661108 | vcs.exim.org | |
| SecurityFocus | af854a3a-2127-422b-91ae-364da2661108 | www.securityfocus.com | |
| Webmail : Solution de messagerie professionnelle - OVHcloud- OVH | af854a3a-2127-422b-91ae-364da2661108 | www.vupen.com | |
| Bug 988 – CVE-2010-2023 - vulnerability with world-writable sticky mbox mail directory | af854a3a-2127-422b-91ae-364da2661108 | bugs.exim.org | |
| Webmail : Solution de messagerie professionnelle - OVHcloud- OVH | af854a3a-2127-422b-91ae-364da2661108 | www.vupen.com | |
| [exim-dev] Security issues in exim4 local delivery | af854a3a-2127-422b-91ae-364da2661108 | lists.exim.org | |
| Exim Weaknesses and Buffer Overflow Vulnerability - Advisories - Community | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | Vendor Advisory |
| Security Advisory SA43243 - Ubuntu update for exim4 - Secunia | af854a3a-2127-422b-91ae-364da2661108 | secunia.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.