Description
In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.
References (8)
Core 8
Core References
Exploit, Issue Tracking, Patch, Vendor Advisory x_refsource_misc
https://bugs.php.net/bug.php?id=79329
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200403-0001/
Third Party Advisory mailing-list
x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/04/msg00021.html
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4330-2/
Third Party Advisory vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4717
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4719
Patch, Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2021-14
Scores
CVSS v3
5.3
EPSS
0.0153
EPSS Percentile
81.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Details
CWE
CWE-170
Status
published
Products (7)
debian/debian_linux
8.0
debian/debian_linux
9.0
debian/debian_linux
10.0
opensuse/leap
15.1
php/php
7.2.0 - 7.2.29
tenable/tenable.sc
5.19.0
tenable/tenable.sc
< 5.19.0
Published
Apr 01, 2020
Tracked Since
Feb 18, 2026