{"action":"Upgrade udunits to 2.1.8-4 or later.","affected":[{"fixed":"2.1.8-4","introduced":"0"}],"component":"udunits","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.1.8-4"],"id":"tcs_01M5N9CK01DR2HBBNNYCCPV14X","modified_at":"2026-10-23T17:47:40.015258845Z","published_at":"2009-12-04T21:30:00.500Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2009-3560","https://security-tracker.debian.org/tracker/CVE-2009-3560"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2009-3560#Debian:12/udunits","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2009-3560"}],"summary":"The big2_toUtf8 function in lib/xmltok.c in libexpat in Expat 2.0.1, as used in the XML-Twig module for Perl, allows context-dependent attackers to cause a denial of service (application crash) via an"}