{"id":"CVE-2019-5164","aliases":["DEBIAN-CVE-2019-5164","EUVD-2019-14769","GHSA-rcm9-p88f-cmqm","MGASA-2020-0006","UBUNTU-CVE-2019-5164","openSUSE-SU-2019:2667-1","openSUSE-SU-2020:0142-1","openSUSE-SU-2024:11379-1"],"status":"published","title":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev...","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","severity":{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0077,"percentile":0.55878,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-306"],"published":"2019-12-03T21:56:21Z","modified":"2026-10-24T10:30:48Z","fixes":[{"ecosystem":"Debian:12","package":"shadowsocks-libev","fixed_in":["3.3.3+ds-2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"shadowsocks-libev","fixed_in":["3.3.3+ds-2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"shadowsocks-libev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3+ds-2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"shadowsocks-libev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3+ds-2"}]}]},{"source":"osv","ecosystem":"Mageia:7","package":"shadowsocks-libev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-1.mga7"}]}],"bundled":2},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"shadowsocks-libev","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"]},{"source":"osv","ecosystem":"openSUSE:Leap 15.1","package":"shadowsocks-libev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-lp151.2.3.1"}]}],"bundled":2},{"source":"osv","ecosystem":"SUSE:Package Hub 15 SP1","package":"shadowsocks-libev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.3-bp151.5.3.1"}]}],"bundled":2},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"shadowsocks-libev","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.5-1.9"}]}],"bundled":3}],"products":[{"vendor":"opensuse","product":"backports_sle"},{"vendor":"opensuse","product":"leap"},{"vendor":"shadowsocks","product":"shadowsocks-libev"}],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2019-0958","tags":["x_refsource_MISC","x_transferred","Exploit","Mitigation","Third Party Advisory","evidence","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-5164"},{"url":"https://github.com/advisories/GHSA-rcm9-p88f-cmqm"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-5164","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2020-0006.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=25864","tags":["report"]},{"url":"https://lists.opensuse.org/opensuse-updates/2019-12/msg00070.html","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2019-5164","tags":["report"]},{"url":"https://github.com/shadowsocks/shadowsocks-libev/issues/2537","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-5164","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/F7462ADKEIGO6IMEKW3GLMBQL3G52ZFY/#F7462ADKEIGO6IMEKW3GLMBQL3G52ZFY","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1158251","tags":["report"]},{"url":"https://bugzilla.suse.com/1158365","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-5163","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-5164","tags":["web"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/HFLDA7RM24NKHWYO7TTYXW4LPNRRTJCB/","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15924","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2019-5164","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2019-12-03T21:56:21Z","modified":"2024-08-04T19:47:56.612Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:20:18.411291Z"}],"euvd":[{"id":"EUVD-2019-14769","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2019-12-03T21:56:21Z","modified":"2024-08-04T19:47:56Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:06:53.453369Z"}],"ghsa":[{"id":"GHSA-rcm9-p88f-cmqm","title":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev...","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2022-05-24T17:02:38Z","modified":"2023-01-28T05:08:07Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:44:35.9832Z"}],"nvd":[{"id":"CVE-2019-5164","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2019-12-03T22:15:15.433Z","modified":"2026-06-17T02:37:14.643Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-306"],"updated_at":"2026-11-02T14:05:38.993437Z"}],"osv":[{"id":"CVE-2019-5164","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2019-12-03T22:15:15.433Z","modified":"2026-10-24T10:30:48.197690762Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:12.675558Z"},{"id":"DEBIAN-CVE-2019-5164","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2019-12-03T22:15:15.433Z","modified":"2026-09-21T07:00:42.349688881Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:32.221385Z"},{"id":"UBUNTU-CVE-2019-5164","description":"An exploitable code execution vulnerability exists in the ss-manager binary of Shadowsocks-libev 3.3.2. Specially crafted network packets sent to ss-manager can cause an arbitrary binary to run, resulting in code execution and privilege escalation. An attacker can send network packets to trigger this vulnerability.","status":"published","published":"2019-12-03T22:15:00Z","modified":"2026-04-22T11:58:26.382797Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:21.741399Z"},{"id":"MGASA-2020-0006","title":"Updated shadowsocks-libev packages fix security vulnerabilities","description":"Updated shadowsocks-libev packages fix security vulnerabilities:\n\nExploitable denial-of-service vulnerability exists in the UDPRelay\nfunctionality (CVE-2019-5163).\n\nCode execution vulnerability in the ss-manager binary (CVE-2019-5164).\n","status":"published","published":"2020-01-05T15:37:51Z","modified":"2026-04-16T04:41:55.697059626Z","updated_at":"2026-11-02T15:49:41.151324Z"},{"id":"openSUSE-SU-2019:2667-1","title":"Security update for shadowsocks-libev","description":"This update for shadowsocks-libev fixes the following issues:\n\n- Update version to 3.3.3\n  * Refine the handling of suspicious connections.\n  * Fix exploitable denial-of-service vulnerability exists in the \n    UDPRelay functionality (boo#1158251, CVE-2019-5163)\n  * Fix code execution vulnerability in the ss-manager binary \n    (boo#1158365, CVE-2019-5164)\n  * Refine the handling of fragment request.\n  * Fix a high CPU bug introduced in 3.3.0. (#2449)\n  * Enlarge the socket buffer size to 16KB.\n  * Fix the empty list bug in ss-manager.\n  * Fix the IPv6 address parser.\n  * Fix a bug of port parser.\n  * Fix a crash with MinGW.\n  * Refine SIP003 plugin interface.\n  * Remove connection timeout from all clients.\n  * Fix the alignment bug again.\n  * Fix a bug on 32-bit arch.\n  * Add TCP fast open support to ss-tunnel by @PantherJohn.\n\n  ","status":"published","published":"2019-12-11T09:13:53Z","modified":"2026-02-04T03:49:49.250903Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"id":"openSUSE-SU-2020:0142-1","title":"Security update for shadowsocks-libev","description":"This update for shadowsocks-libev fixes the following issues:\n\n- Update version to 3.3.3\n  * Refine the handling of suspicious connections.\n  * Fix exploitable denial-of-service vulnerability exists in the \n    UDPRelay functionality (boo#1158251, CVE-2019-5163)\n  * Fix code execution vulnerability in the ss-manager binary \n    (boo#1158365, CVE-2019-5164)\n  * Refine the handling of fragment request.\n  * Fix a high CPU bug introduced in 3.3.0. (#2449)\n  * Enlarge the socket buffer size to 16KB.\n  * Fix the empty list bug in ss-manager.\n  * Fix the IPv6 address parser.\n  * Fix a bug of port parser.\n  * Fix a crash with MinGW.\n  * Refine SIP003 plugin interface.\n  * Remove connection timeout from all clients.\n  * Fix the alignment bug again.\n  * Fix a bug on 32-bit arch.\n  * Add TCP fast open support to ss-tunnel by @PantherJohn.\n\n  \nThis update was imported from the openSUSE:Leap:15.1:Update update project.","status":"published","published":"2020-01-29T16:47:06Z","modified":"2026-02-04T03:24:23.967439Z","updated_at":"2026-11-02T16:58:31.152112Z"},{"id":"openSUSE-SU-2024:11379-1","title":"libshadowsocks-libev2-3.3.5-1.9 on GA media","description":"These are all security issues fixed in the libshadowsocks-libev2-3.3.5-1.9 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T03:02:23.568676Z","updated_at":"2026-11-02T16:58:35.195147Z"}]}}