p PatchFirst

CVE-2019-11049

CVE-2019-11049 · mail() may release string with refcount==1 twice

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 4.2% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • php

    Versions
    • ≥ 7.3.x, < 7.3.13: Affected (custom)
    • ≥ 7.4.x, < 7.4.1: Affected (custom)

    Update to 7.3.13; Update to 7.4.1

Original sources

Check your server →