{"id":"UBUNTU-CVE-2019-5152","details":"An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary packets to trigger this vulnerability.","modified":"2026-01-20T16:44:10.962932Z","published":"2019-12-18T15:15:00Z","upstream":["CVE-2019-5152"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-5152"},{"type":"REPORT","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0942"},{"type":"REPORT","url":"https://github.com/shadowsocks/shadowsocks-libev/issues/2525"},{"type":"REPORT","url":"https://github.com/shadowsocks/shadowsocks-libev/issues/2525#issuecomment-557551274"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-5152"}],"affected":[{"package":{"name":"shadowsocks-libev","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/shadowsocks-libev@3.1.3+ds-1ubuntu2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.8+ds-2","3.1.0+ds-3","3.1.0+ds-4","3.1.0+ds-5","3.1.1+ds-1","3.1.1+ds-2","3.1.1+ds-3","3.1.3+ds-1ubuntu1","3.1.3+ds-1ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libshadowsocks-libev-dev","binary_version":"3.1.3+ds-1ubuntu2"},{"binary_name":"libshadowsocks-libev2","binary_version":"3.1.3+ds-1ubuntu2"},{"binary_name":"shadowsocks-libev","binary_version":"3.1.3+ds-1ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-5152.json"}},{"package":{"name":"shadowsocks-libev","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/shadowsocks-libev@3.3.4+ds-2?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.1+ds-1","3.3.2+ds-1","3.3.3+ds-1","3.3.3+ds-3","3.3.4+ds-1","3.3.4+ds-1ubuntu1","3.3.4+ds-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libshadowsocks-libev-dev","binary_version":"3.3.4+ds-2"},{"binary_name":"libshadowsocks-libev2","binary_version":"3.3.4+ds-2"},{"binary_name":"shadowsocks-libev","binary_version":"3.3.4+ds-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-5152.json"}},{"package":{"name":"shadowsocks-libev","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/shadowsocks-libev@3.3.5+ds-7build1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.5+ds-4","3.3.5+ds-6","3.3.5+ds-7","3.3.5+ds-7build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libshadowsocks-libev-dev","binary_version":"3.3.5+ds-7build1"},{"binary_name":"libshadowsocks-libev2","binary_version":"3.3.5+ds-7build1"},{"binary_name":"shadowsocks-libev","binary_version":"3.3.5+ds-7build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-5152.json"}},{"package":{"name":"shadowsocks-libev","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/shadowsocks-libev@3.3.5+ds-10build3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.5+ds-10","3.3.5+ds-10build1","3.3.5+ds-10build2","3.3.5+ds-10build3"],"ecosystem_specific":{"binaries":[{"binary_name":"libshadowsocks-libev-dev","binary_version":"3.3.5+ds-10build3"},{"binary_name":"libshadowsocks-libev2","binary_version":"3.3.5+ds-10build3"},{"binary_name":"shadowsocks-libev","binary_version":"3.3.5+ds-10build3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-5152.json"}},{"package":{"name":"shadowsocks-libev","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/shadowsocks-libev@3.3.5+ds-16?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.5+ds-16"],"ecosystem_specific":{"binaries":[{"binary_name":"libshadowsocks-libev-dev","binary_version":"3.3.5+ds-16"},{"binary_name":"libshadowsocks-libev2","binary_version":"3.3.5+ds-16"},{"binary_name":"shadowsocks-libev","binary_version":"3.3.5+ds-16"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-5152.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}