PT-2019-17504 · Libev+1 · Shadowsocks-Libev+1

Published 2019-12-03 · Updated 2024-06-15 · CVE-2019-5163

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Shadowsocks-libev version 3.3.2

Description A denial-of-service issue exists in the UDPRelay functionality. When using 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 issue.

Recommendations For Shadowsocks-libev version 3.3.2, consider disabling the UDPRelay functionality as a temporary workaround until a patch is available. Restrict access to the local address to minimize the risk of exploitation.

Exploit

Fix

DoS

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2019-5163

MGASA-2020-0006

OPENSUSE-SU-2019:2667-1

OPENSUSE-SU-2019_2667-1

OPENSUSE-SU-2020:0142-1

OPENSUSE-SU-2024:11379-1

Affected Products

Shadowsocks-Libev

Suse

References · 29

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956 · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2020:0142-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2667-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-5163 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-5163 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2020-0006 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-5163 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:11379-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-5163 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-5163 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0006.html · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-5163 · Security Note
• https://cve.org/CVERecord?id=CVE-2019-5163 · Security Note