parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
https://github.com/GNOME/libxml2/commit/899a5d9f0ed13b8e32449a08a361e0de127dd961
https://bugzilla.gnome.org/show_bug.cgi?id=759579
https://lists.debian.org/debian-lts-announce/2017/11/msg00041.html
https://blog.clamav.net/2018/07/clamav-01001-has-been-released.html
https://usn.ubuntu.com/3739-1/
https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E
https://lists.apache.org/thread.html/[email protected]%3Cissues.bookkeeper.apache.org%3E
https://lists.debian.org/debian-lts-announce/2022/04/msg00004.html
Source: MITRE
Published: 2017-11-23
Updated: 2022-04-08
Type: CWE-835
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 3.9
Severity: HIGH