VulnerabilityModified
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 service or possibly gain privileges by creating a…
MEDIUM 4.4EPSS 0.28%
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.4 MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P
- EPSS
- 0.28% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- exim/exim
- Source
- cve@mitre.org
References
- 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://secunia.com/advisories/40019Vendor Advisory
- http://secunia.com/advisories/40123
- http://secunia.com/advisories/43243
- 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=1.25Patch
- 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
- 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://secunia.com/advisories/40019Vendor Advisory
- http://secunia.com/advisories/40123
- http://secunia.com/advisories/43243
- 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=1.25Patch
- http://www.securityfocus.com/archive/1/511653/100/0/threaded
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.