{"id":"CVE-2010-2023","aliases":["DEBIAN-CVE-2010-2023","EUVD-2010-2043","GHSA-qrcj-mq48-333m","openSUSE-SU-2024:10017-1"],"status":"published","title":"transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is...","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.","severity":{"version":"2.0","score":4.4,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0028,"percentile":0.20584,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-362"],"published":"2010-06-07T14:00:00Z","modified":"2026-10-23T17:47:22Z","fixes":[{"ecosystem":"Debian:12","package":"exim4","fixed_in":["4.72-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"exim4","fixed_in":["4.72-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"exim4","fixed_in":["4.72-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.72-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.72-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.72-1"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"exim","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.86.2-2.2"}]}],"bundled":11}],"products":[{"vendor":"exim","product":"exim"}],"references":[{"url":"http://archives.neohapsis.com/archives/fulldisclosure/2010-06/0079.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","web"]},{"url":"http://www.securityfocus.com/bid/40451","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2010/1402","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/0364","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/43243","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://bugs.exim.org/show_bug.cgi?id=988","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://vcs.exim.org/viewvc/exim/exim-src/src/transports/appendfile.c?r1=1.24\u0026r2=1.25","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix"]},{"url":"http://secunia.com/advisories/40019","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://lists.exim.org/lurker/message/20100524.175925.9a69f755.en.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","web"]},{"url":"http://vcs.exim.org/viewvc/exim/exim-doc/doc-txt/ChangeLog?view=markup\u0026pathrev=exim-4_72_RC2","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://secunia.com/advisories/40123","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/archive/1/511653/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=600093","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042613.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.ubuntu.com/usn/USN-1060-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/59043","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-June/042587.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-2023"},{"url":"https://github.com/advisories/GHSA-qrcj-mq48-333m"},{"url":"https://security-tracker.debian.org/tracker/CVE-2010-2023","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2010-2023","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-2024","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4344","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2010-4345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-0017","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1407","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2011-1764","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5671","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-2957","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-2972","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1531","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2010-2023","description":"transports/appendfile.c 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file.","status":"published","published":"2010-06-07T17:12:48.247Z","modified":"2026-06-16T23:19:50.067Z","cvss":[{"version":"2.0","score":4.4,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:01:47.724369Z"}],"osv":[{"id":"CVE-2010-2023","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.","status":"published","published":"2010-06-07T17:12:48Z","modified":"2026-04-10T03:41:15.267766Z","updated_at":"2026-11-02T15:43:57.714116Z"},{"id":"DEBIAN-CVE-2010-2023","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.","status":"published","published":"2010-06-07T17:12:48.247Z","modified":"2026-10-23T17:47:22.0398148Z","updated_at":"2026-11-02T15:45:24.316685Z"},{"id":"openSUSE-SU-2024:10017-1","title":"exim-4.86.2-2.2 on GA media","description":"These are all security issues fixed in the exim-4.86.2-2.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:08:35.501293Z","updated_at":"2026-11-02T16:58:33.135986Z"}]}}