CVE Vulnerability

CVE-2022-0217

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).

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

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

Configuration 1

cpe:2.3:a:prosody:prosody:*:*:*:*:*:*:*:*
Information

Published : 2022-08-26 06:15

Updated : 2022-09-01 07:04

NVD link : CVE-2022-0217

Mitre link : CVE-2022-0217

Products Affected
No products.
CWE
CWE-776

Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')