{"id":"UBUNTU-CVE-2025-32366","details":"In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr-\u003erdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.","modified":"2026-01-20T18:32:26.080659Z","published":"2025-04-05T23:15:00Z","upstream":["CVE-2025-32366"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-32366"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2025-32366"},{"type":"REPORT","url":"https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1001"},{"type":"REPORT","url":"https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n988"}],"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"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"1.21-1.2+deb8u1ubuntu0.1~esm1","binary_name":"connman"},{"binary_version":"1.21-1.2+deb8u1ubuntu0.1~esm1","binary_name":"connman-dev"},{"binary_version":"1.21-1.2+deb8u1ubuntu0.1~esm1","binary_name":"connman-vpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.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"}]}],"versions":["1.35-1","1.35-2","1.35-6","1.35-6ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.35-6ubuntu0.1~esm1","binary_name":"connman"},{"binary_version":"1.35-6ubuntu0.1~esm1","binary_name":"connman-dev"},{"binary_version":"1.35-6ubuntu0.1~esm1","binary_name":"connman-vpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.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"}]}],"versions":["1.36-2build1","1.36-2ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.36-2ubuntu0.1","binary_name":"connman"},{"binary_version":"1.36-2ubuntu0.1","binary_name":"connman-dev"},{"binary_version":"1.36-2ubuntu0.1","binary_name":"connman-vpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.json"}},{"package":{"name":"connman","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/connman@1.36-2.3ubuntu0.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.36-2.2build1","1.36-2.3","1.36-2.3build1","1.36-2.3ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"1.36-2.3ubuntu0.1","binary_name":"connman"},{"binary_version":"1.36-2.3ubuntu0.1","binary_name":"connman-dev"},{"binary_version":"1.36-2.3ubuntu0.1","binary_name":"connman-vpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.json"}},{"package":{"name":"connman","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/connman@1.42-5build3?arch=source&distro=noble"},"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"],"ecosystem_specific":{"binaries":[{"binary_version":"1.42-5build3","binary_name":"connman"},{"binary_version":"1.42-5build3","binary_name":"connman-dev"},{"binary_version":"1.42-5build3","binary_name":"connman-tests"},{"binary_version":"1.42-5build3","binary_name":"connman-vpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.json"}},{"package":{"name":"connman","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/connman@1.44-3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.43-1","1.44-1","1.44-2","1.44-3"],"ecosystem_specific":{"binaries":[{"binary_version":"1.44-3","binary_name":"connman"},{"binary_version":"1.44-3","binary_name":"connman-dev"},{"binary_version":"1.44-3","binary_name":"connman-tests"},{"binary_version":"1.44-3","binary_name":"connman-vpn"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}