Description
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.
Published: 2021-11-29
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3243-1 php7.3 security update
Debian DSA Debian DSA DSA-5082-1 php7.4 security update
EUVD EUVD EUVD-2021-8879 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.
Ubuntu USN Ubuntu USN USN-5300-1 PHP vulnerabilities
Ubuntu USN Ubuntu USN USN-5300-2 PHP vulnerabilities
Ubuntu USN Ubuntu USN USN-5300-3 PHP vulnerabilities
History

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Subscriptions

Debian Debian Linux
Netapp Clustered Data Ontap
Php Php
Redhat Enterprise Linux Rhel Software Collections
Tenable Tenable.sc
cve-icon MITRE

Status: PUBLISHED

Assigner: php

Published:

Updated: 2024-09-17T03:38:22.394Z

Reserved: 2021-01-04T00:00:00.000Z

Link: CVE-2021-21707

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-11-29T07:15:06.397

Modified: 2024-11-21T05:48:52.593

Link: CVE-2021-21707

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-11-15T00:00:00Z

Links: CVE-2021-21707 - Bugzilla

cve-icon OpenCVE Enrichment

No data.