Null Byte Interaction Error (Poison Null Byte) Affecting php package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
4.5% (89th percentile)

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  • Snyk IDSNYK-RHEL10-PHP-9848425
  • published28 Apr 2025
  • disclosed18 Dec 2006

Introduced: 18 Dec 2006

CVE-2006-7243  (opens in a new tab)
CWE-626  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 php.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php package and not the php package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

PHP before 5.3.4 accepts the \0 character in a pathname, which might allow context-dependent attackers to bypass intended access restrictions by placing a safe file extension after this character, as demonstrated by .php\0.jpg at the end of the argument to the file_exists function.

CVSS Base Scores

version 3.1