CVE catalog
CVE-2019-5163
shadowsocks-libev: CVE-2019-5163
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.66% · Oct 25, 2026
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.
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 |
| Opensuse | shadowsocks-libev | leap 15.1 | 3.3.3-lp151.2.3.1 | fixed |
| Suse | shadowsocks-libev | package hub 15 sp1 | 3.3.3-bp151.5.3.1 | fixed |
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 |
| Opensuse | shadowsocks-libev | rpm | leap 15.1 | 3.3.3-lp151.2.3.1 | Not reported | OPENSUSE-SU-2019:2667-1 | Not reported |
| Suse | shadowsocks-libev | rpm | package hub 15 sp1 | 3.3.3-bp151.5.3.1 | Not reported | OPENSUSE-SU-2020:0142-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libshadowsocks-libev2]Fixed
Source package: [shadowsocks-libev]
Details (2)
3.3.5+ds-10· amd64 · bookwormFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
3.3.5+ds-10· arm64 · bookwormFixed · Fixed:
3.3.3+ds-2dsa · 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 · bookwormFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
3.3.5+ds-10· arm64 · bookwormFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
- [shadowsocks-libev]Fixed
Details (2)
3.3.5+ds-10· amd64 · bookwormFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · bookworm; dsa · shadowsocks-libev · debian · 12
3.3.5+ds-10· arm64 · bookwormFixed · Fixed:
3.3.3+ds-2dsa · 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 · trixieFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · 13
3.3.5+ds-16· arm64 · trixieFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · 13
- [libshadowsocks-libev-dev]Fixed
Source package: [shadowsocks-libev]
Details (2)
3.3.5+ds-16· amd64 · trixieFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · 13
3.3.5+ds-16· arm64 · trixieFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · 13
- [shadowsocks-libev]Fixed
Details (2)
3.3.5+ds-16· amd64 · trixieFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · 13
3.3.5+ds-16· arm64 · trixieFixed · Fixed:
3.3.3+ds-2dsa · shadowsocks-libev · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2019_2667-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2019-5163]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2019-5163]
- [https://osv.dev/vulnerability/openSUSE-SU-2019:2667-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2020:0142-1]
- [https://security-tracker.debian.org/tracker/CVE-2019-5163]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]