{"id":"CVE-2019-11049","aliases":["BELL-CVE-2019-11049","EUVD-2019-2757","GHSA-h3jj-5ghg-r32j","MGASA-2019-0412"],"status":"published","title":"mail() may release string with refcount==1 twice","description":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.04218,"percentile":0.91055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-415"],"published":"2019-12-23T02:40:18Z","modified":"2026-10-24T10:30:34Z","affected":[{"source":"osv","ecosystem":"Mageia:7","package":"php","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.13-1.mga7"}]}],"bundled":5}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"fedoraproject","product":"fedora"},{"vendor":"php","product":"php"},{"vendor":"php group","product":"php"},{"vendor":"tenable","product":"security_center"}],"references":[{"url":"https://bugs.php.net/bug.php?id=78943","tags":["x_refsource_MISC","x_transferred","Mailing List","Patch","Vendor Advisory","fix"]},{"url":"https://security.netapp.com/advisory/ntap-20200103-0002/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://seclists.org/bugtraq/2020/Feb/27","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://www.debian.org/security/2020/dsa-4626","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://www.tenable.com/security/tns-2021-14","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-11049"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F"},{"url":"https://security.netapp.com/advisory/ntap-20200103-0002"},{"url":"https://github.com/advisories/GHSA-h3jj-5ghg-r32j"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2019-11049","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2019-0412.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=25894","tags":["report"]},{"url":"https://www.php.net/ChangeLog-7.php#7.3.13","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-11049","title":"mail() may release string with refcount==1 twice","description":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.","status":"published","published":"2019-12-23T02:40:18.474Z","modified":"2024-09-16T20:47:57.583Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:32:22.432545Z"}],"euvd":[{"id":"EUVD-2019-2757","description":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.","status":"published","published":"2019-12-23T02:40:18Z","modified":"2024-09-16T20:47:57Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"medium"}],"updated_at":"2026-11-03T00:55:10.854479Z"}],"ghsa":[{"id":"GHSA-h3jj-5ghg-r32j","title":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail()...","description":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.","status":"published","published":"2022-05-24T17:04:53Z","modified":"2026-08-17T15:31:29Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T15:10:34.652326Z"}],"nvd":[{"id":"CVE-2019-11049","description":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.","status":"published","published":"2019-12-23T03:15:11.897Z","modified":"2026-08-17T14:50:49.47Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-415"],"updated_at":"2026-11-02T14:05:40.856496Z"}],"osv":[{"id":"BELL-CVE-2019-11049","title":"CVE-2019-11049 does not affect BellSoft software","status":"withdrawn","published":"2019-12-23T03:15:00Z","modified":"2026-01-26T09:49:08.707368Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:28:14.701973Z"},{"id":"CVE-2019-11049","description":"In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.","status":"published","published":"2019-12-23T03:15:11.897Z","modified":"2026-10-24T10:30:34.985191602Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:10.383287Z"},{"id":"MGASA-2019-0412","title":"Updated php packages fix security vulnerabilities","description":"Updated php packages fix security vulnerabilities:\n\nDirectoryIterator class silently truncates after a null byte\n(CVE-2019-11045).\n\nBuffer underflow in bc_shift_addsub). (CVE-2019-11046)\n\nHeap-buffer-overflow READ in exif. (CVE-2019-11047)\n\nmail() may release string with refcount==1 twice. (CVE-2019-11049)\n\nUse-after-free in exif parsing under memory sanitizer). (CVE-2019-11050)\n\nFor other fixes, see the referenced changelog.\n","status":"published","published":"2019-12-25T19:08:41Z","modified":"2026-04-16T04:41:06.05780276Z","updated_at":"2026-11-02T15:49:41.151324Z"}]}}