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.

References

• https://nvd.nist.gov/vuln/detail/CVE-2019-5164
• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0958
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html