CVE-2019-11049

CriticalCVSS 9.8/10Last modified Aug 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

Vendor	Product	Versions
PHP Group	PHP	>= 7.3.x, < 7.3.13; >= 7.4.x, < 7.4.1

References

https://bugs.php.net/bug.php?id=78943Mailing List, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/
https://seclists.org/bugtraq/2020/Feb/27Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0002/Third Party Advisory
https://www.debian.org/security/2020/dsa-4626Third Party Advisory
https://www.tenable.com/security/tns-2021-14Third Party Advisory
https://bugs.php.net/bug.php?id=78943Mailing List, Patch, Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/
https://seclists.org/bugtraq/2020/Feb/27Mailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200103-0002/Third Party Advisory
https://www.debian.org/security/2020/dsa-4626Third Party Advisory
https://www.tenable.com/security/tns-2021-14Third Party Advisory

Timeline

Published: Dec 23, 2019
Last modified: Aug 17, 2026
NVD status: Modified

Related CVEs from 2019

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