{"id":"USN-7849-1","summary":"libssh vulnerability","details":"Philippe Antoine discovered that libssh did not properly manage memory\nwhen calculating a session id during the key exchange process. An attacker\ncould possibly use this issue to cause libssh to crash, resulting in a\ndenial of service.","modified":"2026-02-10T04:50:20Z","published":"2025-11-04T09:36:34Z","related":["UBUNTU-CVE-2025-8114"],"upstream":["CVE-2025-8114","UBUNTU-CVE-2025-8114"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7849-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-8114"}],"affected":[{"package":{"name":"libssh","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.6.3-4.3ubuntu0.6+esm3?arch=source&distro=esm-infra/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.6.3-4.3ubuntu0.6+esm3"}]}],"versions":["0.6.3-3ubuntu3","0.6.3-4.1","0.6.3-4.2","0.6.3-4.2ubuntu1","0.6.3-4.3","0.6.3-4.3ubuntu0.1","0.6.3-4.3ubuntu0.2","0.6.3-4.3ubuntu0.5","0.6.3-4.3ubuntu0.6","0.6.3-4.3ubuntu0.6+esm1","0.6.3-4.3ubuntu0.6+esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"0.6.3-4.3ubuntu0.6+esm3","binary_name":"libssh-4"},{"binary_version":"0.6.3-4.3ubuntu0.6+esm3","binary_name":"libssh-dev"},{"binary_version":"0.6.3-4.3ubuntu0.6+esm3","binary_name":"libssh-gcrypt-4"},{"binary_version":"0.6.3-4.3ubuntu0.6+esm3","binary_name":"libssh-gcrypt-dev"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2025-8114","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7849-1.json"}},{"package":{"name":"libssh","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5"}]}],"versions":["0.7.5-1","0.8.0~20170825.94fa1e38-1","0.8.0~20170825.94fa1e38-1build1","0.8.0~20170825.94fa1e38-1ubuntu0.1","0.8.0~20170825.94fa1e38-1ubuntu0.2","0.8.0~20170825.94fa1e38-1ubuntu0.5","0.8.0~20170825.94fa1e38-1ubuntu0.6","0.8.0~20170825.94fa1e38-1ubuntu0.7","0.8.0~20170825.94fa1e38-1ubuntu0.7+esm3","0.8.0~20170825.94fa1e38-1ubuntu0.7+esm4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5","binary_name":"libssh-4"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5","binary_name":"libssh-dev"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5","binary_name":"libssh-gcrypt-4"},{"binary_version":"0.8.0~20170825.94fa1e38-1ubuntu0.7+esm5","binary_name":"libssh-gcrypt-dev"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2025-8114","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}]}],"ecosystem":"Ubuntu:Pro:18.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7849-1.json"}},{"package":{"name":"libssh","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/libssh@0.9.3-2ubuntu2.5+esm2?arch=source&distro=esm-infra/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.3-2ubuntu2.5+esm2"}]}],"versions":["0.9.0-1ubuntu1","0.9.0-1ubuntu4","0.9.0-1ubuntu5","0.9.3-2ubuntu1","0.9.3-2ubuntu2","0.9.3-2ubuntu2.1","0.9.3-2ubuntu2.2","0.9.3-2ubuntu2.3","0.9.3-2ubuntu2.4","0.9.3-2ubuntu2.5","0.9.3-2ubuntu2.5+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): 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