{"id":"UBUNTU-CVE-2017-6419","details":"mspack/lzxd.c in libmspack 0.5alpha, as used in ClamAV 0.99.2, allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted CHM file.","modified":"2026-04-22T11:29:58.949261Z","published":"2017-08-06T00:00:00Z","related":["USN-3393-1","USN-3393-2","USN-3394-1","USN-7788-1"],"upstream":["CVE-2017-6419"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-6419"},{"type":"REPORT","url":"https://github.com/varsleak/varsleak-vul/blob/master/clamav-vul/heap-overflow/clamav_chm_crash.md"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3394-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3393-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3393-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-6419"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7788-1"}],"affected":[{"package":{"name":"clamav","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/clamav@0.99.2+addedllvm-0ubuntu0.14.04.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.99.2+addedllvm-0ubuntu0.14.04.2"}]}],"versions":["0.97.8+dfsg-1ubuntu4","0.97.8+dfsg-1ubuntu5","0.98.1+dfsg-1ubuntu4","0.98.1+dfsg-1ubuntu5","0.98.1+dfsg-2ubuntu2","0.98.1+dfsg-4ubuntu1","0.98.1+dfsg-4ubuntu1.1","0.98.5+addedllvm-0ubuntu0.14.04.1","0.98.6+dfsg-0ubuntu0.14.04.1","0.98.7+dfsg-0ubuntu0.14.04.1","0.99.2+addedllvm-0ubuntu0.14.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"clamav","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"clamav-base","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"clamav-daemon","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"clamav-docs","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"clamav-freshclam","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"clamav-milter","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"clamav-testfiles","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"},{"binary_name":"libclamav7","binary_version":"0.99.2+addedllvm-0ubuntu0.14.04.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-6419.json"}},{"package":{"name":"libmspack","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/libmspack@0.4-1ubuntu0.1~esm2?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4-1ubuntu0.1~esm2"}]}],"versions":["0.4-1","0.4-1ubuntu0.1~esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro","binaries":[{"binary_name":"libmspack0","binary_version":"0.4-1ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-6419.json"}},{"package":{"name":"libmspack","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/libmspack@0.5-1ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.5-1ubuntu0.16.04.1"}]}],"versions":["0.5-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libmspack0","binary_version":"0.5-1ubuntu0.16.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-6419.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}