CVE-2023-34462: netty-handler SniHandler 16MB allocation

CVE-2023-34462 · Severity: low · CVSS 3.1 · Published 2023-06-20

netty-handler SniHandler 16MB allocation

Technologies: io.netty:netty-handler (Maven). Vendors: Maven.

Quick answers

Is CVE-2023-34462 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-34462 being exploited in the wild.
How severe is CVE-2023-34462?
Low severity, with a CVSS score of 3.1, published 20 June 2023.
Which products and versions are affected?
io.netty:netty-handler (Maven) ECOSYSTEM:introduced=0,fixed=4.1.94.Final.
Is there a fix for CVE-2023-34462?
Yes. io.netty:netty-handler (Maven): upgrade to 4.1.94.Final or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-34462?
Check whether you run io.netty:netty-handler (Maven) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • io.netty:netty-handler (Maven): upgrade to 4.1.94.Final or later
    # set io.netty:netty-handler to 4.1.94.Final in your pom.xml or build.gradle

Affected products

  • io.netty:netty-handler (Maven) ECOSYSTEM:introduced=0,fixed=4.1.94.Final

Identifiers

  • CVE-2023-34462
  • GHSA-6mjq-h674-j845

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