{"id":"UBUNTU-CVE-2018-1000637","details":"zutils version prior to version 1.8-pre2 contains a Buffer Overflow vulnerability in zcat that can result in Potential denial of service or arbitrary code execution. This attack appear to be exploitable via the victim openning a crafted compressed file. This vulnerability appears to have been fixed in 1.8-pre2.","modified":"2025-10-24T04:47:21Z","published":"2018-08-20T19:31:00Z","upstream":["CVE-2018-1000637"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1000637"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2018/08/05/1"},{"type":"REPORT","url":"https://lists.nongnu.org/archive/html/zutils-bug/2018-08/msg00000.html"},{"type":"REPORT","url":"https://bugs.debian.org/904819"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1000637"}],"affected":[{"package":{"name":"zutils","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/zutils@1.4-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"zutils","binary_version":"1.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000637.json"}},{"package":{"name":"zutils","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/zutils@1.7-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.6-3","1.6-4","1.6-5","1.6-6","1.7-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.7-1","binary_name":"zutils"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1000637.json"}}],"schema_version":"1.7.3","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"}]}