Upstream information

CVE-2019-5163 at MITRE

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.3
Vector AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1158251 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP1
  • libshadowsocks-libev2 >= 3.3.3-bp151.5.3.1
  • shadowsocks-libev >= 3.3.3-bp151.5.3.1
  • shadowsocks-libev-devel >= 3.3.3-bp151.5.3.1
  • shadowsocks-libev-doc >= 3.3.3-bp151.5.3.1
Patchnames:
openSUSE-2020-142
openSUSE Leap 15.1
  • libshadowsocks-libev2 >= 3.3.3-lp151.2.3.1
  • shadowsocks-libev >= 3.3.3-lp151.2.3.1
  • shadowsocks-libev-devel >= 3.3.3-lp151.2.3.1
  • shadowsocks-libev-doc >= 3.3.3-lp151.2.3.1
Patchnames:
openSUSE-2019-2667
openSUSE Tumbleweed
  • libshadowsocks-libev2 >= 3.3.5-1.9
  • shadowsocks-libev >= 3.3.5-1.9
  • shadowsocks-libev-devel >= 3.3.5-1.9
  • shadowsocks-libev-doc >= 3.3.5-1.9
Patchnames:
openSUSE Tumbleweed GA libshadowsocks-libev2-3.3.5-1.9