{"id":"UBUNTU-CVE-2026-1425","details":"A security flaw has been discovered in pymumu SmartDNS up to 47.1. This vulnerability affects the function _dns_decode_rr_head/_dns_decode_SVCB_HTTPS of the file src/dns.c of the component SVBC Record Parser. The manipulation results in stack-based buffer overflow. It is possible to launch the attack remotely. A high complexity level is associated with this attack. It is stated that the exploitability is difficult. The patch is identified as 2d57c4b4e1add9b4537aeb403f794a084727e1c8. Applying a patch is advised to resolve this issue.","modified":"2026-05-20T16:24:07.112158952Z","published":"2026-01-26T08:16:00Z","upstream":["CVE-2026-1425"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-1425"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-1425"}],"affected":[{"package":{"name":"smartdns","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/smartdns?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["33+dfsg-2.1","33+dfsg-2.1build1","35+dfsg-1","35+dfsg-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"smartdns","binary_version":"35+dfsg-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1425.json"}},{"package":{"name":"smartdns","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/smartdns?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["42+dfsg-1","43+dfsg-1","45+dfsg-1","45+dfsg-1build1","45+dfsg-1build2","45+dfsg-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"45+dfsg-1ubuntu0.1~esm1","binary_name":"smartdns"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1425.json"}},{"package":{"name":"smartdns","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/smartdns?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46+dfsg-1ubuntu1","46.1+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"smartdns","binary_version":"46.1+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1425.json"}},{"package":{"name":"smartdns","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/smartdns?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["46.1+dfsg-1","46.1+dfsg-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"46.1+dfsg-1build1","binary_name":"smartdns"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-1425.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}