{"id":"UBUNTU-CVE-2021-41500","details":"Incomplete string comparison vulnerability exits in cvxopt.org cvxop \u003c= 1.2.6 in APIs (cvxopt.cholmod.diag, cvxopt.cholmod.getfactor, cvxopt.cholmod.solve, cvxopt.cholmod.spsolve), which allows attackers to conduct Denial of Service attacks by construct fake Capsule objects.","modified":"2025-10-24T04:50:35Z","published":"2021-12-17T21:15:00Z","upstream":["CVE-2021-41500"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-41500"},{"type":"REPORT","url":"https://github.com/cvxopt/cvxopt/issues/193"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-41500"}],"affected":[{"package":{"name":"cvxopt","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/cvxopt@1.1.4-1.2?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.4-1","1.1.4-1.1","1.1.4-1.2"],"ecosystem_specific":{"binaries":[{"binary_name":"python-cvxopt","binary_version":"1.1.4-1.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41500.json"}},{"package":{"name":"cvxopt","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/cvxopt@1.1.4-1.4?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.4-1.3","1.1.4-1.3build1","1.1.4-1.3build2","1.1.4-1.4"],"ecosystem_specific":{"binaries":[{"binary_name":"python-cvxopt","binary_version":"1.1.4-1.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41500.json"}},{"package":{"name":"cvxopt","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/cvxopt@1.1.9+dfsg-2build1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.9+dfsg-2","1.1.9+dfsg-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python-cvxopt","binary_version":"1.1.9+dfsg-2build1"},{"binary_name":"python3-cvxopt","binary_version":"1.1.9+dfsg-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41500.json"}},{"package":{"name":"cvxopt","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/cvxopt@1.2.3+dfsg-2build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.9+dfsg-3build2","1.2.3+dfsg-1ubuntu1","1.2.3+dfsg-2","1.2.3+dfsg-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-cvxopt","binary_version":"1.2.3+dfsg-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41500.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}