| Name | CVE-2019-5163 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| shadowsocks-libev (PTS) | stretch (security), stretch (lts), stretch | 2.6.3+ds-3+deb9u1 | vulnerable |
| buster | 3.2.5+ds-1 | vulnerable |
| bullseye | 3.3.5+ds-4 | fixed |
| bookworm | 3.3.5+ds-10 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| shadowsocks-libev | source | (unstable) | 3.3.3+ds-2 | | | |
Notes
[buster] - shadowsocks-libev <no-dsa> (Minor issue)
[stretch] - shadowsocks-libev <no-dsa> (Minor issue)
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956
https://github.com/shadowsocks/shadowsocks-libev/issues/2536