This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2018-20843 →

DEBIAN-CVE-2018-20843

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...

Original description

The description as published by the source.

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).

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.6-2"}]}]

Debian:13 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.6-2"}]}]

Debian:14 expat

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.6-2"}]}]

Debian:12 libxmltok

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

advisory security-tracker.debian.org