CVE-2017-12621

Description

During Jelly (xml) file parsing with Apache Xerces, if a custom doctype entity is declared with a "SYSTEM" entity with a URL and that entity is used in the body of the Jelly file, during parser instantiation the parser will attempt to connect to said URL. This could lead to XML External Entity (XXE) attacks in Apache Commons Jelly before 1.0.1.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.46%
Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Commons Jelly
Published at:
Updated at:

References

Link Tags
https://issues.apache.org/jira/browse/JELLY-293 issue tracking patch vendor advisory
https://lists.apache.org/thread.html/f1fc3f2c45264af44ce782d54b5908ac95f02bf7ad88bb57bfb04b73%40%3Cdev.commons.apache.org%3E mailing list
http://www.securityfocus.com/bid/101052 vdb entry third party advisory
http://www.securitytracker.com/id/1039444 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-12621?
CVE-2017-12621 has been scored as a critical severity vulnerability.
How to fix CVE-2017-12621?
To fix CVE-2017-12621, 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-2017-12621 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-12621 is being actively exploited. 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-2017-12621?
CVE-2017-12621 affects Apache Software Foundation Apache Commons Jelly.
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