What’s Vulnerable › Vulnerabilities

CVE-2019-5163

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-12-03 · updated 2026-06-17
• Weakness: CWE-306

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.

Affected products

• openSUSE Backports: sle-15-sp1
• openSUSE Leap: 15.1
• Shadowsocks: 3.3.2

References

• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html
• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html
• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956

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