Use of Insufficiently Random Values Affecting netty-tcnative package, versions <2.0.79-150200.3.45.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.26% (17th percentile)

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  • Snyk IDSNYK-SLES156-NETTYTCNATIVE-17928648
  • published10 Jul 2026
  • disclosed8 Jul 2026

Introduced: 8 Jul 2026

NewCVE-2026-45673  (opens in a new tab)
CWE-330  (opens in a new tab)
CWE-340  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 netty-tcnative to version 2.0.79-150200.3.45.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-tcnative package and not the netty-tcnative package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, Netty's DNS resolver uses a predictable PRNG for generating DNS transaction IDs and defaults to a static UDP source port. This combination reduces the entropy of DNS queries, enabling DNS Cache Poisoning (Kaminsky attack). Versions 4.1.135.Final and 4.2.15.Final patch the issue.

CVSS Base Scores

version 3.1