ALPINE-CVE-2018-20843

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2018-20843
Published: 24 Jun 2019, 17:15
Last modified:03 Dec 2025, 22:43

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Jun 2019, 17:15
Published
Vulnerability first disclosed
03 Dec 2025, 22:43
Last Modified
Vulnerability information updated

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).

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • alpine•expat

    < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0 | < 2.2.7-r0

References (1)