VULNERABILITY INTELLIGENCE
CVE-2018-20843
CVSS score7.5 HIGH
EPSS probability7.11%
CISA KEVNot currently listed
Published2019-06-24
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
In libexpat in Expat before 2.2.7, XML input including XML names that contain a large number of colons could make the XML parser consume a high amount of RAM and CPU resources while processing (enough to be usable for denial-of-service attacks).
Weakness classification
- CWE-611: Improper Restriction of XML External Entity Reference
Primary references
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Issue Tracking, Third Party Advisory
- cve@mitre.org — Release Notes, Third Party Advisory
- cve@mitre.org — Issue Tracking, Patch, Third Party Advisory
- cve@mitre.org — Exploit, Patch, Third Party Advisory
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory