{"id":"UBUNTU-CVE-2026-32945","details":"PJSIP is a free and open source multimedia communication library written in C. Versions 2.16 and below have a Heap-based Buffer Overflowvulnerability in the DNS parser's name length handler. Thisimpacts applications using PJSIP's built-in DNS resolver, such as those configured with pjsua_config.nameserver or UaConfig.nameserver in PJSUA/PJSUA2. It does not affect users who rely on the OS resolver (e.g., getaddrinfo()) by not configuring a nameserver, or those using an external resolver via pjsip_resolver_set_ext_resolver(). This issue is fixed in version 2.17. For users unable to upgrade, a workaround is to disable DNS resolution in the PJSIP config (by setting nameserver_count to zero) or to use an external resolver implementation instead.","modified":"2026-04-22T16:30:28.760376Z","published":"2026-03-20T04:16:00Z","upstream":["CVE-2026-32945"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-32945"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-32945"},{"type":"REPORT","url":"https://github.com/pjsip/pjproject/security/advisories/GHSA-jr2p-p2w4-rr9q"},{"type":"REPORT","url":"https://github.com/pjsip/pjproject/commit/5311aee398ae9d623829a6bad7b679a193c9e199"}],"affected":[{"package":{"name":"pjproject","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/pjproject@2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.0.0.ast20130823-1","2.1.0.0.ast20130823-1+deb8u1build0.16.04.1","2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpj2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjlib-util2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-audiodev2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-codec2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1","binary_name":"libpjmedia-videodev2"},{"binary_name":"libpjmedia2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjnath2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsip-simple2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsip-ua2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsip2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"},{"binary_name":"libpjsua2","binary_version":"2.1.0.0.ast20130823-1+deb8u1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32945.json"}},{"package":{"name":"pjproject","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/pjproject@2.7.2~dfsg-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.6~dfsg-2","2.7~dfsg-1","2.7.1~dfsg-1","2.7.1~dfsg-1build1","2.7.2~dfsg-1","2.7.2~dfsg-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libpj2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjlib-util2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-audiodev2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-codec2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjmedia-videodev2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjmedia2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjnath2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjsip-simple2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjsip-ua2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjsip2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjsua2","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"libpjsua2-2v5","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"},{"binary_name":"python-pjproject","binary_version":"2.7.2~dfsg-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-32945.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}