{"id":"UBUNTU-CVE-2021-26676","details":"gdhcp in ConnMan before 1.39 could be used by network-adjacent attackers to leak sensitive stack information, allowing further exploitation of bugs in gdhcp.","modified":"2026-04-22T14:39:10.848551Z","published":"2021-02-09T16:15:00Z","related":["USN-6236-1"],"upstream":["CVE-2021-26676"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-26676"},{"type":"REPORT","url":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=58d397ba74873384aee449690a9070bacd5676fa"},{"type":"REPORT","url":"https://git.kernel.org/pub/scm/network/connman/connman.git/commit/?id=a74524b3e3fad81b0fd1084ffdf9f2ea469cd9b1"},{"type":"REPORT","url":"https://bugzilla.suse.com/show_bug.cgi?id=1181751"},{"type":"REPORT","url":"https://git.kernel.org/pub/scm/network/connman/connman.git/tree/ChangeLog"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2021/02/08/2"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6236-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-26676"}],"affected":[{"package":{"name":"connman","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/connman@1.21-1.2+deb8u1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.21-1.2+deb8u1ubuntu0.1~esm1"}]}],"versions":["1.21-1.2","1.21-1.2build1","1.21-1.2build2","1.21-1.2+deb8u1build0.16.04.1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"connman","binary_version":"1.21-1.2+deb8u1ubuntu0.1~esm1"},{"binary_name":"connman-vpn","binary_version":"1.21-1.2+deb8u1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-26676.json"}},{"package":{"name":"connman","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/connman@1.35-6ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.35-6ubuntu0.1~esm1"}]}],"versions":["1.35-1","1.35-2","1.35-6"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"connman","binary_version":"1.35-6ubuntu0.1~esm1"},{"binary_name":"connman-vpn","binary_version":"1.35-6ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-26676.json"}},{"package":{"name":"connman","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/connman@1.36-2ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.36-2ubuntu0.1"}]}],"versions":["1.36-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"connman","binary_version":"1.36-2ubuntu0.1"},{"binary_name":"connman-vpn","binary_version":"1.36-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-26676.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}