{"id":"USN-8503-1","summary":"ncurses vulnerability","details":"It was discovered that ncurses incorrectly handled certain terminfo\nentries in the infocmp tool. An attacker could possibly use this issue\nto cause a denial of service via a crafted terminfo file.\n\nThe default compiler options for affected releases should reduce the\nvulnerability to a denial of service.","modified":"2026-07-08T18:44:25.712911490Z","published":"2026-07-02T22:04:04Z","related":["UBUNTU-CVE-2025-69720"],"upstream":["CVE-2025-69720","UBUNTU-CVE-2025-69720"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8503-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-69720"}],"affected":[{"package":{"name":"ncurses","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/ncurses?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.9+20140118-1ubuntu1+esm6"}]}],"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","5.9+20140118-1ubuntu1+esm5"],"ecosystem_specific":{"binaries":[{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"lib32ncurses5"},{"binary_name":"lib32ncursesw5","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"lib32tinfo5"},{"binary_name":"lib64ncurses5","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"lib64tinfo5"},{"binary_name":"libncurses5","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_name":"libncursesw5","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"libtinfo5"},{"binary_name":"libx32ncurses5","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_name":"libx32ncursesw5","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"libx32tinfo5"},{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"ncurses-base"},{"binary_name":"ncurses-bin","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_name":"ncurses-examples","binary_version":"5.9+20140118-1ubuntu1+esm6"},{"binary_version":"5.9+20140118-1ubuntu1+esm6","binary_name":"ncurses-term"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8503-1.json","cves_map":{"ecosystem":"Ubuntu:Pro:14.04:LTS","cves":[{"id":"CVE-2025-69720","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L"},{"type":"Ubuntu","score":"low"}]}]}}},{"package":{"name":"ncurses","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/ncurses?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0+20160213-1ubuntu1+esm6"}]}],"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","6.0+20160213-1ubuntu1+esm5"],"ecosystem_specific":{"binaries":[{"binary_name":"lib32ncurses5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_name":"lib32ncursesw5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_name":"lib32tinfo5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_name":"lib64ncurses5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_version":"6.0+20160213-1ubuntu1+esm6","binary_name":"lib64tinfo5"},{"binary_version":"6.0+20160213-1ubuntu1+esm6","binary_name":"libncurses5"},{"binary_version":"6.0+20160213-1ubuntu1+esm6","binary_name":"libncursesw5"},{"binary_name":"libtinfo5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_version":"6.0+20160213-1ubuntu1+esm6","binary_name":"libx32ncurses5"},{"binary_name":"libx32ncursesw5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_name":"libx32tinfo5","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_name":"ncurses-base","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_version":"6.0+20160213-1ubuntu1+esm6","binary_name":"ncurses-bin"},{"binary_name":"ncurses-examples","binary_version":"6.0+20160213-1ubuntu1+esm6"},{"binary_name":"ncurses-term","binary_version":"6.0+20160213-1ubuntu1+esm6"}],"availability":"Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:16.04:LTS","cves":[{"id":"CVE-2025-69720","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L"},{"type":"Ubuntu","score":"low"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8503-1.json"}},{"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+esm3"}]}],"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","6.1-1ubuntu1.18.04.1+esm2"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"lib32ncurses5"},{"binary_name":"lib32ncursesw5","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"lib32tinfo5"},{"binary_name":"lib64ncurses5","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"lib64tinfo5"},{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"libncurses5"},{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"libncursesw5"},{"binary_name":"libtinfo5","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"libx32ncurses5"},{"binary_name":"libx32ncursesw5","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_name":"libx32tinfo5","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_version":"6.1-1ubuntu1.18.04.1+esm3","binary_name":"ncurses-base"},{"binary_name":"ncurses-bin","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_name":"ncurses-examples","binary_version":"6.1-1ubuntu1.18.04.1+esm3"},{"binary_name":"ncurses-term","binary_version":"6.1-1ubuntu1.18.04.1+esm3"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L"},{"type":"Ubuntu","score":"low"}],"id":"CVE-2025-69720"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8503-1.json"}},{"package":{"name":"ncurses","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/ncurses?arch=source&distro=esm-infra%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2-0ubuntu2.1+esm1"}]}],"versions":["6.1+20190803-1ubuntu1","6.1+20191019-1ubuntu1","6.2-0ubuntu2","6.2-0ubuntu2.1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"lib32ncurses6"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"lib32ncursesw6"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"lib32tinfo6"},{"binary_name":"lib64ncurses6","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_name":"lib64ncursesw6","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"lib64tinfo6"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"libncurses5"},{"binary_name":"libncurses6","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"libncursesw5"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"libncursesw6"},{"binary_name":"libtinfo5","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_version":"6.2-0ubuntu2.1+esm1","binary_name":"libtinfo6"},{"binary_name":"ncurses-base","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_name":"ncurses-bin","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_name":"ncurses-examples","binary_version":"6.2-0ubuntu2.1+esm1"},{"binary_name":"ncurses-term","binary_version":"6.2-0ubuntu2.1+esm1"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8503-1.json","cves_map":{"cves":[{"id":"CVE-2025-69720","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L"},{"score":"low","type":"Ubuntu"}]}],"ecosystem":"Ubuntu:Pro:20.04:LTS"}}}],"schema_version":"1.7.5"}