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).
1.16.33-3.2ubuntu31.33.06-0ubuntu10.6.3-3build10.1.0+git20150808-10.1.0+git20150808-20.23.3-2ubuntu22.1.0-7ubuntu0.16.04.43.20.1+git20120521-63.20.1+git20120521-6build14.8.1-1ubuntu34.8.1-1ubuntu44.8.2-3.1ubuntu14.9.0-3ubuntu24.9.0-4ubuntu14.9.0-4ubuntu1.10.13+ds1-52.4.7-42.4.7-4build11.33.14-0.2ubuntu31.33.14-1ubuntu1Exploitability
AV:NAC:LPR:NUI:NScope
S:UImpact
C:NI:NA:HCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H