CVE-2019-11049

critical

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

https://bugs.php.net/bug.php?id=78943

https://security.netapp.com/advisory/ntap-20200103-0002/

https://lists.fedoraproject.org/archives/list/[email protected]/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/

https://lists.fedoraproject.org/archives/list/[email protected]/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/

https://seclists.org/bugtraq/2020/Feb/27

https://www.debian.org/security/2020/dsa-4626

Details

Source: MITRE

Published: 2019-12-23

Updated: 2021-07-22

Type: CWE-415

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

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

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL