{"id":"USN-8723-1","summary":"spice-vdagent vulnerabilities","details":"It was discovered that SPICE vdagent had an integer overflow in the buffer\nsize calculation used when writing to the daemon socket. A malicious or\ncompromised SPICE host could possibly use this issue to cause SPICE vdagent\nto crash, resulting in a denial of service. (CVE-2026-57965)\n\nIt was discovered that SPICE vdagent did not properly sanitize filenames\nprovided by the SPICE host during file transfers. A malicious or\ncompromised SPICE host could possibly use this issue to write arbitrary\nfiles to any location on the guest operating system with the privileges of\nthe spice-vdagent process. (CVE-2026-57966)","modified":"2026-09-03T22:56:55.471011368Z","published":"2026-09-03T12:43:08Z","related":["UBUNTU-CVE-2026-57965","UBUNTU-CVE-2026-57966"],"upstream":["CVE-2026-57965","CVE-2026-57966","UBUNTU-CVE-2026-57965","UBUNTU-CVE-2026-57966"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8723-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-57965"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-57966"}],"affected":[{"package":{"name":"spice-vdagent","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/spice-vdagent?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.22.1-1ubuntu0.1"}]}],"versions":["0.20.0-2build1","0.20.0-3","0.22.1-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"spice-vdagent","binary_version":"0.22.1-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8723-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"id":"CVE-2026-57965","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H"},{"type":"Ubuntu","score":"medium"}]},{"id":"CVE-2026-57966","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"spice-vdagent","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/spice-vdagent?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.22.1-4ubuntu0.1"}]}],"versions":["0.22.1-3","0.22.1-4","0.22.1-4build1","0.22.1-4build2","0.22.1-4build3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"spice-vdagent","binary_version":"0.22.1-4ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8723-1.json","cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"id":"CVE-2026-57965","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2026-57966","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"},{"score":"medium","type":"Ubuntu"}]}]}}},{"package":{"name":"spice-vdagent","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/spice-vdagent?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.23.0-1ubuntu0.1"}]}],"versions":["0.22.1-5","0.23.0-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"spice-vdagent","binary_version":"0.23.0-1ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8723-1.json","cves_map":{"ecosystem":"Ubuntu:26.04:LTS","cves":[{"id":"CVE-2026-57965","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H"},{"type":"Ubuntu","score":"medium"}]},{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2026-57966"}]}}}],"schema_version":"1.9.0"}