7.5
HIGH
CVE-2019-5163
Shadowsocks-libev UDP Relay Denial-of-Service Vulnerability
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.

INFO

Published Date :

Dec. 3, 2019, 10:15 p.m.

Last Modified :

June 17, 2022, 1:34 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-5163 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Opensuse leap
2 Opensuse backports
1 Shadowsocks shadowsocks-libev
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-5163.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html Mailing List Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956 Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-5163 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-5163 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Jun. 17, 2022

    Action Type Old Value New Value
    Removed CWE NIST CWE-327
    Removed CWE NIST CWE-755
    Added CWE NIST CWE-306
  • CVE Modified by [email protected]

    Apr. 29, 2022

    Action Type Old Value New Value
    Added CWE Talos CWE-306
  • CVE Modified by [email protected]

    Apr. 19, 2022

    Action Type Old Value New Value
    Added CVSS V3 Talos AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Modified Analysis by [email protected]

    Jan. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html Mailing List, Third Party Advisory
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html Mailing List, Third Party Advisory
    Removed CWE NIST CWE-20
    Added CPE Configuration OR *cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:* *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-306 CWE-20 CWE-327 CWE-755
  • CVE Modified by [email protected]

    Jan. 29, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00061.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 11, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00023.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 05, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2019-0956 Exploit, Third Party Advisory
    Added CWE NIST CWE-306
    Added CPE Configuration OR *cpe:2.3:a:shadowsocks:shadowsocks-libev:3.3.2:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-5163 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.00%

score

0.45270

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability