What is CVE-2019-5152?

CVE-2019-5152 is a high-severity vulnerability in Shadowsocks Shadowsocks-Libev, classified under Missing Authentication for Critical Function. CVSS score: 7.4/10. Published 2019-12-18.

How severe is CVE-2019-5152?

High severity. CVSS v3 base score is 7.4 out of 10.

Auth bypass in Shadowsocks Shadowsocks-Libev

CVE-2019-5152

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.

Vulnerability class: Broken Authentication

EPSS: 0.014 (69.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Shadowsocks Shadowsocks-libev — versions 3.3.2
N/a Shadowsocks — versions Shadowsocks-libev 3.3.2

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

talos-cna@cisco.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-5152?: CVE-2019-5152 is a high-severity vulnerability in Shadowsocks Shadowsocks-Libev, classified under Missing Authentication for Critical Function. CVSS score: 7.4/10. Published 2019-12-18.
How severe is CVE-2019-5152?: High severity. CVSS v3 base score is 7.4 out of 10.