{"id":"USN-3917-1","summary":"snapd vulnerability","details":"The snapd default seccomp filter for strict mode snaps blocks the use of\nthe ioctl() system call when used with TIOCSTI as the second argument to\nthe system call. Jann Horn discovered that this restriction could be\ncircumvented on 64 bit architectures. A malicious snap could exploit this\nto bypass intended access restrictions to insert characters into the\nterminal's input queue. On Ubuntu, snapd typically will have already\nautomatically refreshed itself to snapd 2.37.4 which is unaffected.\n","modified":"2026-02-10T04:41:29Z","published":"2019-03-21T20:46:02Z","related":["UBUNTU-CVE-2019-7303"],"upstream":["CVE-2019-7303","UBUNTU-CVE-2019-7303"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3917-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-7303"},{"type":"REPORT","url":"https://launchpad.net/bugs/1812973"}],"affected":[{"package":{"name":"snapd","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/snapd@2.37.4~14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.37.4~14.04.1"}]}],"versions":["2.21~14.04.2","2.22.2~14.04","2.22.3~14.04","2.22.6~14.04","2.23.1~14.04","2.24.1~14.04","2.25~14.04","2.26.10~14.04","2.27.5~14.04","2.28.5~14.04","2.29.4.2~14.04","2.32.3.2~14.04","2.32.9~14.04","2.33.1~14.04","2.34.2~14.04","2.34.2~14.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"golang-github-snapcore-snapd-dev","binary_version":"2.37.4~14.04.1"},{"binary_name":"golang-github-ubuntu-core-snappy-dev","binary_version":"2.37.4~14.04.1"},{"binary_name":"snap-confine","binary_version":"2.37.4~14.04.1"},{"binary_name":"snapd","binary_version":"2.37.4~14.04.1"},{"binary_name":"snapd-xdg-open","binary_version":"2.37.4~14.04.1"},{"binary_name":"ubuntu-core-launcher","binary_version":"2.37.4~14.04.1"},{"binary_name":"ubuntu-core-snapd-units","binary_version":"2.37.4~14.04.1"},{"binary_name":"ubuntu-snappy","binary_version":"2.37.4~14.04.1"},{"binary_name":"ubuntu-snappy-cli","binary_version":"2.37.4~14.04.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2019-7303","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:14.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3917-1.json"}},{"package":{"name":"snapd","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/snapd@2.37.4ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.37.4ubuntu0.1"}]}],"versions":["1.9","1.9.1.1","1.9.2","2.0","2.0.1","2.0.2","2.0.3","2.0.5","2.0.8","2.0.9","2.0.10","2.11+0.16.04","2.12+0.16.04","2.13","2.14.2~16.04","2.15.2ubuntu1","2.16ubuntu3","2.17.1ubuntu1","2.20.1ubuntu1","2.21","2.22.2","2.22.3","2.22.6","2.23.1","2.24.1","2.25","2.26.10","2.27.5","2.28.5","2.29.4.2","2.32.3.2","2.32.9","2.33.1ubuntu2","2.34.2","2.34.2ubuntu0.1","2.37.4"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"golang-github-snapcore-snapd-dev","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"golang-github-ubuntu-core-snappy-dev","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"snap-confine","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"snapd","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"snapd-xdg-open","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"ubuntu-core-launcher","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"ubuntu-core-snapd-units","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"ubuntu-snappy","binary_version":"2.37.4ubuntu0.1"},{"binary_name":"ubuntu-snappy-cli","binary_version":"2.37.4ubuntu0.1"}]},"database_specific":{"cves_map":{"cves":[{"id":"CVE-2019-7303","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","type":"CVSS_V3"},{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:16.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3917-1.json"}},{"package":{"name":"snapd","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/snapd@2.37.4+18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.37.4+18.04.1"}]}],"versions":["2.28.5+17.10","2.29.4.1+18.04","2.29.4.2+18.04","2.31.1+18.04","2.32+18.04~pre5","2.32+18.04~pre6","2.32+18.04","2.32.3.2+18.04","2.32.5+18.04","2.32.8+18.04","2.32.9+18.04","2.33.1+18.04ubuntu2","2.34.2+18.04","2.34.2+18.04.1","2.37.1+18.04","2.37.1.1+18.04","2.37.4+18.04"],"ecosystem_specific":{"availability":"No subscription 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