Improper Input Validation Affecting php-embedded package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.17% (55th percentile)

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  • Snyk IDSNYK-CENTOS6-PHPEMBEDDED-2027855
  • published24 Nov 2021
  • disclosed15 Nov 2021

Introduced: 15 Nov 2021

CVE-2021-21707  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

There is no fixed version for Centos:6 php-embedded.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-embedded package and not the php-embedded package as distributed by Centos. See How to fix? for Centos:6 relevant fixed versions and status.

In PHP versions 7.3.x below 7.3.33, 7.4.x below 7.4.26 and 8.0.x below 8.0.13, certain XML parsing functions, like simplexml_load_file(), URL-decode the filename passed to them. If that filename contains URL-encoded NUL character, this may cause the function to interpret this as the end of the filename, thus interpreting the filename differently from what the user intended, which may lead it to reading a different file than intended.

CVSS Scores

version 3.1