CVE-2020-7066 Information

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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.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html https://bugs.php.net/bug.php?id=79329 https://lists.debian.org/debian-lts-announce/2020/04/msg00021.html https://security.netapp.com/advisory/ntap-20200403-0001/ https://usn.ubuntu.com/4330-2/ https://www.debian.org/security/2020/dsa-4717 https://www.debian.org/security/2020/dsa-4719

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

4.3