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Canonical Ubuntu Server 22.04 LTS (Jammy Jellyfish) Update Version 2.2.3-1ubuntu0.1~esm1

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Update Summary

USN-8731-1 updates miniupnpd on Ubuntu Server 22.04 LTS (jammy) to fix an integer underflow in SOAPAction header parsing. A remote attacker could trigger denial of service or information disclosure with malformed network traffic.

Update Details

Security

  • Fixes an integer underflow vulnerability in SOAPAction header parsing.
  • A remote attacker could cause denial of service or information disclosure by sending a malformed SOAPAction header with a single quote.

Hints

  • A standard system update installs the fixed package versions.
  • For Ubuntu Server 22.04 LTS (jammy), update miniupnpd, miniupnpd-iptables, and miniupnpd-nftables to 2.2.3-1ubuntu0.1~esm1.

Product Information

Vendor: Canonical

Product: Ubuntu Server

Product type: Software

Application category: Utilities

Platform: Linux

Variant: 22.04 LTS (Jammy Jellyfish)

Version: 2.2.3-1ubuntu0.1~esm1

Vendor release date: Sep 7, 2026

Original release notes: View on vendor site

Published on updatealert.io: Sep 8, 2026

Description: Server operating system for Linux infrastructure and workloads.

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