Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libxml2-2.9.1 package, versions <2.9.1+e1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published22 Oct 2026
- disclosed23 Nov 2017
Introduced: 23 Nov 2017
CVE-2017-16932 (opens in a new tab)How to fix?
Upgrade Echo:latest libxml2-2.9.1 to version 2.9.1+e1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libxml2-2.9.1 package and not the libxml2-2.9.1 package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
parser.c in libxml2 before 2.9.5 does not prevent infinite recursion in parameter entities.
References
- https://advisory.echohq.com/cve/CVE-2017-16932
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/899a5d9f0ed13b8e32449a08a361e0de127dd961
- http://xmlsoft.org/news.html
- https://blog.clamav.net/2018/07/clamav-01001-has-been-released.html
- https://bugzilla.gnome.org/show_bug.cgi?id=759579
- https://github.com/GNOME/libxml2/commit/899a5d9f0ed13b8e32449a08a361e0de127dd961
- https://lists.debian.org/debian-lts-announce/2017/11/msg00041.html
- https://lists.debian.org/debian-lts-announce/2022/04/msg00004.html
- https://usn.ubuntu.com/3739-1/
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html