Vulnerability 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).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Prosody | Prosody | < 0.11.12 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2040639Issue TrackingThird Party Advisory
- https://prosody.im/security/advisory_20220113/ExploitPatchVendor Advisory
- https://prosody.im/security/advisory_20220113/1.patchPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2040639Issue TrackingThird Party Advisory
- https://prosody.im/security/advisory_20220113/ExploitPatchVendor Advisory
- https://prosody.im/security/advisory_20220113/1.patchPatchVendor Advisory
FAQ
What is CVE-2022-0217?
CVE-2022-0217 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...
How severe is CVE-2022-0217?
CVE-2022-0217 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-0217?
Check the references section above for vendor advisories and patch information. Affected products include: Prosody Prosody.