| Name | CVE-2019-5152 |
| Description | An exploitable information disclosure vulnerability exists in the network packet handling functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher, a specially crafted set of network packets can cause an outbound connection from the server, resulting in information disclosure. An attacker can send arbitrary 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) |
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 | vulnerable | |
| bookworm | 3.3.5+ds-10 | vulnerable |
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) | (unfixed) | unimportant |
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0942
https://github.com/shadowsocks/shadowsocks-libev/issues/2525
Upstream has no plan to remove stream ciphers as per
https://github.com/shadowsocks/shadowsocks-libev/issues/2525#issuecomment-557551274
Documented insecure use case provided for backwards compatibility.