CVE-2019-11044

link() silently truncates after a null byte on Windows

State: Published
Severity: 3.7 Low
Published: Dec 23, 2019
Updated: Sep 17, 2024
Reserved: Apr 9, 2019

Description

In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0 on Windows, PHP link() function accepts filenames with embedded \0 byte and treats them as terminating at that byte. This could lead to security vulnerabilities, e.g. in applications checking paths that the code is allowed to access.

Scores

CVSS	Score	Vector	Source
3.1	3.7 Low	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N	php

Weaknesses

CWE-170 Improper Null Termination

Affected Products

Product	Versions
PHPPHP Group	7.2.x to before 7.2.26Affected 7.3.x to before 7.3.13Affected 7.4.x to before 7.4.1Affected

References

https://bugs.php.net/bug.php?id=78862
https://security.netapp.com/advisory/ntap-20200103-0002/
FEDORA-2019-437d94e271vendor-advisory
FEDORA-2019-a54a622670vendor-advisory
https://www.tenable.com/security/tns-2021-14

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