{"id":"UBUNTU-CVE-2024-39223","details":"An authentication bypass in the SSH service of gost v2.11.5 allows attackers to intercept communications via setting the HostKeyCallback function to ssh.InsecureIgnoreHostKey","modified":"2026-03-25T19:13:01.270723Z","published":"2024-07-03T15:15:00Z","upstream":["CVE-2024-39223"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-39223"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-39223"},{"type":"REPORT","url":"https://github.com/ginuerzh/gost/issues/1034"},{"type":"REPORT","url":"https://github.com/ginuerzh/gost/blob/729d0e70005607dc7c69fc1de62fd8fe21f85355/ssh.go#L229"},{"type":"REPORT","url":"https://gist.github.com/nyxfqq/a7242170b1118e78436a62dee4e09e8a"}],"affected":[{"package":{"name":"gost","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/gost@0.1.0+git20181204.5afeda5e-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0+git20181204.5afeda5e-1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-knqyf263-gost-dev","binary_version":"0.1.0+git20181204.5afeda5e-1"},{"binary_name":"gost","binary_version":"0.1.0+git20181204.5afeda5e-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-39223.json"}},{"package":{"name":"gost","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/gost@0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.3+esm2?arch=source&distro=esm-apps/jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.0+git20181204.5afeda5e-1.1","0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.1","0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.2","0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.3","0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.3+esm1","0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-knqyf263-gost-dev","binary_version":"0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.3+esm2"},{"binary_name":"gost","binary_version":"0.1.0+git20181204.5afeda5e-1.1ubuntu0.22.04.3+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-39223.json"}},{"package":{"name":"gost","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/gost@0.1.2-2ubuntu0.24.04.3+esm1?arch=source&distro=esm-apps/noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.2-2","0.1.2-2ubuntu0.24.04.1","0.1.2-2ubuntu0.24.04.2","0.1.2-2ubuntu0.24.04.3","0.1.2-2ubuntu0.24.04.3+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-knqyf263-gost-dev","binary_version":"0.1.2-2ubuntu0.24.04.3+esm1"},{"binary_name":"gost","binary_version":"0.1.2-2ubuntu0.24.04.3+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-39223.json"}},{"package":{"name":"gost","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/gost@0.1.2-2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.1.2-2"],"ecosystem_specific":{"binaries":[{"binary_name":"golang-github-knqyf263-gost-dev","binary_version":"0.1.2-2"},{"binary_name":"gost","binary_version":"0.1.2-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-39223.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}