{"id":"UBUNTU-CVE-2021-42613","details":"A double free in cleanup_index in index.c in Halibut 1.2 allows an attacker to cause a denial of service or possibly have other unspecified impact via a crafted text document.","modified":"2026-05-20T16:06:29.794517301Z","published":"2022-05-24T19:15:00Z","upstream":["CVE-2021-42613"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-42613"},{"type":"REPORT","url":"https://carteryagemann.com/halibut-case-study.html#poc-halibut-winhelp-df"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-42613"}],"affected":[{"package":{"name":"halibut","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0+svn20090906-9","1.1-1","1.1-2","1.1-3","1.1-4"],"ecosystem_specific":{"binaries":[{"binary_version":"1.1-4","binary_name":"halibut"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}},{"package":{"name":"halibut","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2-1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.2-1","binary_name":"halibut"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}},{"package":{"name":"halibut","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"halibut","binary_version":"1.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}},{"package":{"name":"halibut","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.2-4build1","1.2-5","1.3-1","1.3-2"],"ecosystem_specific":{"binaries":[{"binary_name":"halibut","binary_version":"1.3-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}},{"package":{"name":"halibut","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3-2"],"ecosystem_specific":{"binaries":[{"binary_version":"1.3-2","binary_name":"halibut"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}},{"package":{"name":"halibut","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3-2"],"ecosystem_specific":{"binaries":[{"binary_name":"halibut","binary_version":"1.3-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}},{"package":{"name":"halibut","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/halibut?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3-2","1.3-5"],"ecosystem_specific":{"binaries":[{"binary_name":"halibut","binary_version":"1.3-5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-42613.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}