{"id":"USN-5965-1","summary":"tigervnc vulnerability","details":"It was discovered that TigerVNC mishandled TLS certificate exceptions. An\nattacker could use this vulnerability to impersonate any server after a client\nhad added an exception and obtain sensitive information.\n","modified":"2026-02-10T04:43:01Z","published":"2023-03-21T01:41:15Z","related":["UBUNTU-CVE-2020-26117"],"upstream":["CVE-2020-26117","UBUNTU-CVE-2020-26117"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5965-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-26117"}],"affected":[{"package":{"name":"tigervnc","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/tigervnc@1.10.1+dfsg-3ubuntu0.1+esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.10.1+dfsg-3ubuntu0.1+esm2"}]}],"versions":["1.9.0+dfsg-3","1.9.0+dfsg-4","1.10.1+dfsg-1","1.10.1+dfsg-2","1.10.1+dfsg-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.10.1+dfsg-3ubuntu0.1+esm2","binary_name":"tigervnc-common"},{"binary_version":"1.10.1+dfsg-3ubuntu0.1+esm2","binary_name":"tigervnc-scraping-server"},{"binary_version":"1.10.1+dfsg-3ubuntu0.1+esm2","binary_name":"tigervnc-standalone-server"},{"binary_version":"1.10.1+dfsg-3ubuntu0.1+esm2","binary_name":"tigervnc-viewer"},{"binary_version":"1.10.1+dfsg-3ubuntu0.1+esm2","binary_name":"tigervnc-xorg-extension"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5965-1.json","cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2020-26117"}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}}],"schema_version":"1.7.3"}