CVE-2022-0217

Public Exploit

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).

Categories

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.06%
Vendor Advisory prosody.im Vendor Advisory prosody.im
Affected: n/a prosody
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2040639 third party advisory issue tracking
https://prosody.im/security/advisory_20220113/ patch vendor advisory exploit
https://prosody.im/security/advisory_20220113/1.patch patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-0217?
CVE-2022-0217 has been scored as a high severity vulnerability.
How to fix CVE-2022-0217?
To fix CVE-2022-0217, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-0217 being actively exploited in the wild?
It is possible that CVE-2022-0217 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-0217?
CVE-2022-0217 affects n/a prosody.
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