CVE catalog

CVE-2019-5164

shadowsocks-libev: CVE-2019-5164

Severity: High · CVSS 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: Dec 3, 2019, 10:15:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.77% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	shadowsocks-libev	sid	`3.3.6+ds-3`	fixed
Debian	shadowsocks-libev	trixie	`3.3.5+ds-16`	fixed
Debian	shadowsocks-libev	bookworm	`3.3.5+ds-10`	fixed
Ubuntu	shadowsocks-libev	18.04	`3.0.8+ds-2`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.0+ds-3`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.0+ds-4`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.0+ds-5`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.1+ds-1`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.1+ds-2`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.1+ds-3`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.3+ds-1ubuntu1`	vulnerable
Ubuntu	shadowsocks-libev	18.04	`3.1.3+ds-1ubuntu2`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	shadowsocks-libev	source	sid	`3.3.3+ds-2`	not yet assigned	Not reported	Not reported
Debian	shadowsocks-libev	source	trixie	`3.3.3+ds-2`	not yet assigned	Not reported	Not reported
Debian	shadowsocks-libev	source	bookworm	`3.3.3+ds-2`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libshadowsocks-libev2]Fixed
Source package: [shadowsocks-libev]
Details (2)
- 3.3.5+ds-10 · amd64 · bookworm
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
- 3.3.5+ds-10 · arm64 · bookworm
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
[libshadowsocks-libev-dev]Fixed
Source package: [shadowsocks-libev]
Details (2)
- 3.3.5+ds-10 · amd64 · bookworm
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
- 3.3.5+ds-10 · arm64 · bookworm
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
[shadowsocks-libev]Fixed
Details (2)
- 3.3.5+ds-10 · amd64 · bookworm
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
- 3.3.5+ds-10 · arm64 · bookworm
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12

[Debian 13 (Trixie)]

[libshadowsocks-libev2]Fixed
Source package: [shadowsocks-libev]
Details (2)
- 3.3.5+ds-16 · amd64 · trixie
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · 13
- 3.3.5+ds-16 · arm64 · trixie
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · 13
[libshadowsocks-libev-dev]Fixed
Source package: [shadowsocks-libev]
Details (2)
- 3.3.5+ds-16 · amd64 · trixie
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · 13
- 3.3.5+ds-16 · arm64 · trixie
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · 13
[shadowsocks-libev]Fixed
Details (2)
- 3.3.5+ds-16 · amd64 · trixie
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · 13
- 3.3.5+ds-16 · arm64 · trixie
  Fixed · Fixed: 3.3.3+ds-2
  dsa · shadowsocks-libev · debian · 13

Observed: Oct 23, 2026, 5:44:40 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]