CVE-2019-11049

MEDIUM

Php < 7.3.13 - Double Free

Title source: rule

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.

References (7)

[Mailing List, Patch, Vendor Advisory] https://bugs.php.net/bug.php?id=78943

[Mailing List, Third Party Advisory] https://seclists.org/bugtraq/2020/Feb/27

[Third Party Advisory] https://security.netapp.com/advisory/ntap-20200103-0002/

[Third Party Advisory] https://www.debian.org/security/2020/dsa-4626

[Third Party Advisory] https://www.tenable.com/security/tns-2021-14

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/

Scores

CVSS v3 6.5

EPSS 0.0273

EPSS Percentile 85.8%

Attack Vector NETWORK

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

Classification

CWE

CWE-415

Status published

Affected Products (6)

php/php < 7.3.13

php/php

fedoraproject/fedora

fedoraproject/fedora

debian/debian_linux

tenable/securitycenter < 5.19.0

Timeline

Published Dec 23, 2019

Tracked Since Feb 18, 2026