{"id":"USN-7956-1","summary":"google-guest-agent vulnerability","details":"Jakub Ciolek discovered that the Go Cryptography module included in\nGoogle Guest Agent did not validate GSSAPI authentication requests during\nSSH operations. An attacker could possibly use this issue to cause a\ndenial of service.","modified":"2026-02-10T04:50:47Z","published":"2026-01-13T06:41:34Z","related":["UBUNTU-CVE-2025-58181"],"upstream":["CVE-2025-58181","UBUNTU-CVE-2025-58181"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7956-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-58181"}],"affected":[{"package":{"name":"google-guest-agent","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/google-guest-agent@20240716.00-0ubuntu1~16.04.0+esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20240716.00-0ubuntu1~16.04.0+esm2"}]}],"versions":["20201217.02-0ubuntu1~16.04.0","20230426.00-0ubuntu2~16.04.3","20231004.02-0ubuntu1~16.04.1","20231004.02-0ubuntu1~16.04.2","20240716.00-0ubuntu1~16.04.0","20240716.00-0ubuntu1~16.04.0+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"20240716.00-0ubuntu1~16.04.0+esm2","binary_name":"google-guest-agent"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7956-1.json","cves_map":{"cves":[{"id":"CVE-2025-58181","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:16.04:LTS"}}},{"package":{"name":"google-guest-agent","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/google-guest-agent@20241011.01-0ubuntu1~18.04.0+esm2?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"20241011.01-0ubuntu1~18.04.0+esm2"}]}],"versions":["20201217.02-0ubuntu1~18.04.0","20210414.00-0ubuntu1~18.04.0","20210629.00-0ubuntu1~18.04.1","20220622.00-0ubuntu2~18.04.0","20220622.00-0ubuntu2~18.04.1","20230426.00-0ubuntu2~18.04.0","20231004.02-0ubuntu1~18.04.2","20231004.02-0ubuntu1~18.04.3","20240716.00-0ubuntu1~18.04.0","20241011.01-0ubuntu1~18.04.0","20241011.01-0ubuntu1~18.04.0+esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"20241011.01-0ubuntu1~18.04.0+esm2","binary_name":"google-guest-agent"}],"availability":"Available with Ubuntu Pro: 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