{"id":"CVE-2025-32743","aliases":["DEBIAN-CVE-2025-32743","EUVD-2025-10687","GHSA-r8hx-vf7j-v5q3","UBUNTU-CVE-2025-32743"],"status":"published","title":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty...","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","severity":{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00526,"percentile":0.45085,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-392"],"published":"2025-04-10T00:00:00Z","modified":"2026-10-17T12:56:50Z","fixes":[{"ecosystem":"Debian:13","package":"connman","fixed_in":["1.44-2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"connman","fixed_in":["1.44-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.41-3","1.42-1","1.42-2","1.42-3","1.42-4","1.42-5","1.43-1","1.44-1","1.44-2","1.44-3","1.45-1","1.45-2","1.45-3","2.0-1","2.0-2"]},{"source":"osv","ecosystem":"Debian:13","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.44-2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.44-2"}]}]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.21-1.2","1.21-1.2build1","1.21-1.2build2","1.21-1.2+deb8u1build0.16.04.1","1.21-1.2+deb8u1ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.35-1","1.35-2","1.35-6","1.35-6ubuntu0.1~esm1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.36-2build1","1.36-2ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.36-2.2build1","1.36-2.3","1.36-2.3build1","1.36-2.3ubuntu0.1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.41-3","1.42-1","1.42-3","1.42-5","1.42-5build2","1.42-5build3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.43-1","1.44-1","1.44-2","1.44-3"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.45-3","2.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"connman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.44-3","1.45-2","1.45-3"]}],"products":[{"vendor":"connman","product":"connman"}],"references":[{"url":"https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1688","tags":["web","report"]},{"url":"https://lapis-sawfish-be3.notion.site/0-click-Vulnerability-in-Comman-1-43_v3-1cadc00d01d080b0b3b9c46a6da584cc","tags":["web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-32743"},{"url":"https://github.com/advisories/GHSA-r8hx-vf7j-v5q3"},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-32743","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-32743","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-32743","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-32743","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T00:00:00Z","modified":"2025-04-10T14:30:27.85Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-392"],"updated_at":"2026-11-02T14:32:46.42892Z"}],"euvd":[{"id":"EUVD-2025-10687","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T00:00:00Z","modified":"2025-04-10T14:30:27Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T20:52:37.204811Z"}],"ghsa":[{"id":"GHSA-r8hx-vf7j-v5q3","title":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty...","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T15:31:49Z","modified":"2025-04-10T15:31:55Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-392"],"updated_at":"2026-11-02T15:01:03.805326Z"}],"nvd":[{"id":"CVE-2025-32743","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T14:15:29.74Z","modified":"2026-06-17T09:12:31.353Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-392"],"updated_at":"2026-11-02T14:11:00.087098Z"}],"osv":[{"id":"DEBIAN-CVE-2025-32743","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T14:15:29.74Z","modified":"2026-09-01T20:05:45.94908576Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:45:45.870237Z"},{"id":"UBUNTU-CVE-2025-32743","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T14:15:00Z","modified":"2026-10-17T12:56:50.238795905Z","cvss":[{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:55:28.829873Z"},{"id":"CVE-2025-32743","description":"In ConnMan through 1.44, the lookup string in ns_resolv in dnsproxy.c can be NULL or an empty string when the TC (Truncated) bit is set in a DNS response. This allows attackers to cause a denial of service (application crash) or possibly execute arbitrary code, because those lookup values lead to incorrect length calculations and incorrect memcpy operations.","status":"published","published":"2025-04-10T14:15:29Z","modified":"2026-04-10T05:25:13.680633Z","updated_at":"2026-11-02T15:44:48.02508Z"}]}}