Vulnerability Details : CVE-2019-5163

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.
Published 2019-12-03 22:15:15
Updated 2022-06-17 13:34:17
Source Talos
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2019-5163

Exploit prediction scoring system (EPSS) score for CVE-2019-5163

EPSS FAQ
0.17%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 55 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-5163

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
 MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
 NIST
5.9
 MEDIUM CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
2.2
3.6
 Talos
7.5
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST

CWE ids for CVE-2019-5163

  • The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
    Assigned by:
    • nvd@nist.gov (Primary)
    • talos-cna@cisco.com (Secondary)

References for CVE-2019-5163

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