{"id":"CVE-2011-0017","aliases":["DEBIAN-CVE-2011-0017","DSA-2154-1","EUVD-2011-0043","GHSA-6w36-rjfw-vf62","openSUSE-SU-2024:10017-1"],"status":"published","title":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1)...","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","severity":{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00379,"percentile":0.32079,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-59"],"published":"2011-01-30T00:00:00Z","modified":"2026-10-23T17:47:41Z","fixes":[{"ecosystem":"Debian:12","package":"exim4","fixed_in":["4.72-4"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"exim4","fixed_in":["4.72-4"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"exim4","fixed_in":["4.72-4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.72-4"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.72-4"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.72-4"}]}]},{"source":"osv","ecosystem":"Debian:5.0","package":"exim4","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.69-9+lenny3"}]}],"versions":["4.69-9","4.69-9+lenny1"],"bundled":2},{"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://secunia.com/advisories/43128","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://osvdb.org/70696","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","web"]},{"url":"ftp://ftp.exim.org/pub/exim/ChangeLogs/ChangeLog-4.74","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2011/0364","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/bid/46065","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/43243","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/65028","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"http://lists.exim.org/lurker/message/20110126.034702.4d69c278.en.html","tags":["mailing-list","x_refsource_MLIST","x_transferred","Patch","fix"]},{"url":"http://www.vupen.com/english/advisories/2011/0224","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.debian.org/security/2011/dsa-2154","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00004.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","web"]},{"url":"http://www.vupen.com/english/advisories/2011/0464","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","advisory"]},{"url":"http://secunia.com/advisories/43101","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/0245","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.ubuntu.com/usn/USN-1060-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-0017"},{"url":"https://github.com/advisories/GHSA-6w36-rjfw-vf62"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-0017","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-2011-0017","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","status":"published","published":"2011-02-02T00:00:00Z","modified":"2024-08-06T21:36:02.265Z","updated_at":"2026-11-02T14:35:39.447402Z"}],"euvd":[{"id":"EUVD-2011-0043","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","status":"published","published":"2011-02-02T00:00:00Z","modified":"2024-08-06T21:36:02Z","updated_at":"2026-11-03T01:56:01.964017Z"}],"ghsa":[{"id":"GHSA-6w36-rjfw-vf62","title":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1)...","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","status":"published","published":"2022-05-17T19:49:31Z","modified":"2023-01-28T05:04:56Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:44:16.563052Z"}],"nvd":[{"id":"CVE-2011-0017","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","status":"published","published":"2011-02-02T01:00:06.203Z","modified":"2026-06-16T23:26:37.847Z","cvss":[{"version":"2.0","score":6.9,"vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-20","CWE-59"],"updated_at":"2026-11-02T14:02:06.042049Z"}],"osv":[{"id":"CVE-2011-0017","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","status":"published","published":"2011-02-02T01:00:06Z","modified":"2026-04-10T03:41:36.306856Z","updated_at":"2026-11-02T15:43:57.991581Z"},{"id":"DEBIAN-CVE-2011-0017","description":"The open_log function in log.c in Exim 4.72 and earlier does not check the return value from (1) setuid or (2) setgid system calls, which allows local users to append log data to arbitrary files via a symlink attack.","status":"published","published":"2011-02-02T01:00:06.203Z","modified":"2026-10-23T17:47:41.167396491Z","updated_at":"2026-11-02T15:45:24.316685Z"},{"id":"DSA-2154-1","title":"exim4 - privilege escalation","status":"published","published":"2011-01-30T00:00:00Z","modified":"2026-03-09T01:22:54.162935Z","updated_at":"2026-11-02T15:46:15.108335Z"},{"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"}]}}