{"id":"USN-6684-1","summary":"ncurses vulnerability","details":"It was discovered that ncurses incorrectly handled certain function return\nvalues, possibly leading to segmentation fault. A local attacker could possibly\nuse this to cause a denial of service (system crash).\n","modified":"2026-05-20T16:06:11.002313140Z","published":"2024-03-07T20:52:17Z","related":["UBUNTU-CVE-2023-50495"],"upstream":["CVE-2023-50495","UBUNTU-CVE-2023-50495"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6684-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-50495"}],"affected":[{"package":{"name":"ncurses","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/ncurses?arch=source&distro=trusty%2Fesm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9+20140118-1ubuntu1+esm5"}]}],"versions":["5.9+20130608-1ubuntu1","5.9+20131221-1ubuntu1","5.9+20140118-1ubuntu1","5.9+20140118-1ubuntu1+esm1","5.9+20140118-1ubuntu1+esm2","5.9+20140118-1ubuntu1+esm3","5.9+20140118-1ubuntu1+esm4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"lib32ncurses5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"lib32ncursesw5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"lib32tinfo5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"lib64ncurses5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"lib64tinfo5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"libncurses5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"libncursesw5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"libtinfo5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"libx32ncurses5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"libx32ncursesw5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"libx32tinfo5","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"ncurses-base","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"ncurses-bin","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"ncurses-examples","binary_version":"5.9+20140118-1ubuntu1+esm5"},{"binary_name":"ncurses-term","binary_version":"5.9+20140118-1ubuntu1+esm5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6684-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2023-50495"}]}}},{"package":{"name":"ncurses","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/ncurses?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0+20160213-1ubuntu1+esm5"}]}],"versions":["5.9+20150516-2ubuntu1","6.0+20151024-2ubuntu1","6.0+20151024-2ubuntu2","6.0+20160213-1ubuntu1","6.0+20160213-1ubuntu1+esm1","6.0+20160213-1ubuntu1+esm2","6.0+20160213-1ubuntu1+esm3","6.0+20160213-1ubuntu1+esm4"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"libx32ncurses5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"ncurses-examples","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"lib32ncursesw5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"libncursesw5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"libtinfo5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"lib64tinfo5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"lib32ncurses5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"ncurses-bin","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"lib64ncurses5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"libncurses5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"lib32tinfo5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"ncurses-base","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"libx32ncursesw5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"libx32tinfo5","binary_version":"6.0+20160213-1ubuntu1+esm5"},{"binary_name":"ncurses-term","binary_version":"6.0+20160213-1ubuntu1+esm5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6684-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[]}}},{"package":{"name":"ncurses","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/ncurses?arch=source&distro=esm-infra%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1-1ubuntu1.18.04.1+esm2"}]}],"versions":["6.0+20160625-1ubuntu1","6.0+20171125-1ubuntu1","6.1-1ubuntu1","6.1-1ubuntu1.18.04","6.1-1ubuntu1.18.04.1","6.1-1ubuntu1.18.04.1+esm1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_name":"lib32ncurses5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"lib32ncursesw5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"lib32tinfo5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"lib64ncurses5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"lib64tinfo5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"libncurses5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"libncursesw5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"libtinfo5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"libx32ncurses5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"libx32ncursesw5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"libx32tinfo5","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"ncurses-base","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"ncurses-bin","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"ncurses-examples","binary_version":"6.1-1ubuntu1.18.04.1+esm2"},{"binary_name":"ncurses-term","binary_version":"6.1-1ubuntu1.18.04.1+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6684-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2023-50495"}]}}}],"schema_version":"1.7.5"}