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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-0217 Detail

Description

It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=2040639 Issue Tracking  Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2040639 Issue Tracking  Third Party Advisory 
https://prosody.im/security/advisory_20220113/ Exploit  Patch  Vendor Advisory 
https://prosody.im/security/advisory_20220113/ Exploit  Patch  Vendor Advisory 
https://prosody.im/security/advisory_20220113/1.patch Patch  Vendor Advisory 
https://prosody.im/security/advisory_20220113/1.patch Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-611 Improper Restriction of XML External Entity Reference cwe source acceptance level NIST  
CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-0217
NVD Published Date:
08/26/2022
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.