{"id":"UBUNTU-CVE-2026-108063","details":"A flaw was found in libhangul. When parsing Hanja dictionary files, the library fails to verify that an entry contains a valid value alongside its key. By providing a specially crafted dictionary file to an application that queries it, an attacker can trigger an unexpected application crash, resulting in a Denial of Service (DoS).","modified":"2026-10-13T15:17:03.069917543Z","published":"2026-10-12T00:00:00Z","upstream":["CVE-2026-108063"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-108063"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-108063"},{"type":"REPORT","url":"access.redhat.com/downloads/content/package-browser"},{"type":"REPORT","url":"github.com/libhangul/libhangul/issues/106"},{"type":"REPORT","url":"security-tracker.debian.org/tracker/cve-2026-108063"},{"type":"REPORT","url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1150512"}],"affected":[{"package":{"name":"libhangul","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libhangul?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"libhangul-data","binary_version":"0.1.0-3"},{"binary_name":"libhangul1","binary_version":"0.1.0-3"}],"priority_reason":"Denial of service requires a specially crafted dictionary file; no remote or default-configuration exposure."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108063.json"}},{"package":{"name":"libhangul","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/libhangul?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0-4","0.1.0+git20170815-1","0.1.0+git20170815-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libhangul-data","binary_version":"0.1.0+git20170815-2"},{"binary_name":"libhangul1","binary_version":"0.1.0+git20170815-2"}],"priority_reason":"Denial of service requires a specially crafted dictionary file; no remote or default-configuration exposure."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108063.json"}},{"package":{"name":"libhangul","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libhangul?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0+git20170815-2","0.1.0+git20191003-1","0.1.0+git20191003-2"],"ecosystem_specific":{"priority_reason":"Denial of service requires a specially crafted dictionary file; no remote or default-configuration exposure.","binaries":[{"binary_name":"libhangul-data","binary_version":"0.1.0+git20191003-2"},{"binary_name":"libhangul1","binary_version":"0.1.0+git20191003-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108063.json"}},{"package":{"name":"libhangul","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libhangul?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0+git20191003-2ubuntu2","0.1.0+git20191003-2ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"libhangul-data","binary_version":"0.1.0+git20191003-2ubuntu3"},{"binary_name":"libhangul1","binary_version":"0.1.0+git20191003-2ubuntu3"}],"priority_reason":"Denial of service requires a specially crafted dictionary file; no remote or default-configuration exposure."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108063.json"}},{"package":{"name":"libhangul","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libhangul?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0+git20230314-1","0.1.0+git20230314-2","0.1.0+git20230314-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libhangul-data","binary_version":"0.1.0+git20230314-2build1"},{"binary_name":"libhangul1","binary_version":"0.1.0+git20230314-2build1"}],"priority_reason":"Denial of service requires a specially crafted dictionary file; no remote or default-configuration exposure."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108063.json"}},{"package":{"name":"libhangul","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libhangul?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.2.0-1","0.2.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libhangul-data","binary_version":"0.2.0-1build1"},{"binary_name":"libhangul1","binary_version":"0.2.0-1build1"}],"priority_reason":"Denial of service requires a specially crafted dictionary file; no remote or default-configuration exposure."},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-108063.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}