{"id":"CVE-2019-5163","details":"An exploitable denial-of-service vulnerability exists in the UDPRelay functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher and a local_address, arbitrary UDP packets can cause a FATAL error code path and exit. An attacker can send arbitrary UDP packets to trigger this vulnerability.","modified":"2026-09-15T03:45:49.874021623Z","published":"2019-12-03T22:15:15.370Z","related":["openSUSE-SU-2019:2667-1","openSUSE-SU-2020:0142-1","openSUSE-SU-2024:11379-1"],"database_specific":{"unresolved_ranges":[{"source":"CPE_STRING","vendor_product":"opensuse:backports","cpes":["cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:*"],"extracted_events":[{"introduced":"sle-15-sp1"},{"last_affected":"sle-15-sp1"}]},{"vendor_product":"opensuse:leap","cpes":["cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"15.1"},{"last_affected":"15.1"}],"source":"CPE_STRING"}]},"references":[{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html"},{"type":"EVIDENCE","url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/shadowsocks/shadowsocks-c","events":[{"introduced":"346ab1be4717e26d641635d6f3ece14899688c49"},{"last_affected":"346ab1be4717e26d641635d6f3ece14899688c49"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:shadowsocks:shadowsocks-libev:3.3.2:*:*:*:*:*:*:*","extracted_events":[{"introduced":"3.3.2"},{"last_affected":"3.3.2"}]}}],"versions":["3.3.2","v3.3.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-5163.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}