Missing Authentication for Critical Function Affecting shadowsocks-libev package, versions <3.3.3+ds-2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.23% (62nd percentile)

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  • Snyk IDSNYK-DEBIAN12-SHADOWSOCKSLIBEV-1559875
  • published2 Dec 2019
  • disclosed3 Dec 2019

Introduced: 2 Dec 2019

CVE-2019-5163  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade Debian:12 shadowsocks-libev to version 3.3.3+ds-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream shadowsocks-libev package and not the shadowsocks-libev package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.

CVSS Scores

version 3.1