CVE-2010-2023
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.28% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 20.2% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2010-06-07 14:00Z16 YR AGO
- Last updated
- 2024-08-07 02:17Z2 YR AGO
- Reserved
- 2010-05-24
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')Class
- Data version
- 5.1
- Document digest
- 6d139543a4ec05417fa64205a0c7fd31b65ba86221128552b2c8e17f1632c984
05 Affected products
06 References
- archives.neohapsis.com20100603 Multiple vulnerabilities in Eximhttp://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html
- www.securityfocus.com40451http://www.securityfocus.com/bid/40451
- www.vupen.comADV-2010-1402http://www.vupen.com/english/advisories/2010/1402
- www.vupen.comADV-2011-0364http://www.vupen.com/english/advisories/2011/0364
- secunia.com43243http://secunia.com/advisories/43243
- bugs.exim.orghttp://bugs.exim.org/show_bug.cgi?id=988
- vcs.exim.orghttp://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24&r2=1.25
- secunia.com40019http://secunia.com/advisories/40019
- lists.exim.org[exim-dev] 20100524 Security issues in exim4 local deliveryhttp://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html
- vcs.exim.orghttp://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup&pathrev=exim-4_72_RC2
- secunia.com40123http://secunia.com/advisories/40123
- www.securityfocus.com20100603 Multiple vulnerabilities in Eximhttp://www.securityfocus.com/archive/1/511653/100/0/threaded
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=600093
- lists.fedoraproject.orgFEDORA-2010-9524http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html
- lists.opensuse.orgSUSE-SR:2010:014http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
- www.ubuntu.comUSN-1060-1http://www.ubuntu.com/usn/USN-1060-1
- exchange.xforce.ibmcloud.comexim-mail-directory-priv-escalation(59043)https://exchange.xforce.ibmcloud.com/vulnerabilities/59043
- lists.fedoraproject.orgFEDORA-2010-9506http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html
07 Fixed in
Debian 12
- exim4 Fixed in 4.72-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- exim4 Fixed in 4.72-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- exim4 Fixed in 4.72-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.