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Canonical Ubuntu Server 22.04 LTS (Jammy Jellyfish) Update Version libc6 2.35-0ubuntu3.15

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Update Summary

USN-8737-1 updates `libc6` for Ubuntu Server 22.04 LTS (Jammy Jellyfish) to address GNU C Library security issues. The advisory covers multiple CVEs affecting denial of service and possible arbitrary code execution.

Update Details

Security

  • GNU C Library strfmon buffer overflow could allow denial of service or arbitrary code execution; CVE-2026-19499.
  • GNU C Library tdelete out-of-bounds stack array access could allow denial of service or arbitrary code execution; CVE-2026-19542.
  • GNU C Library wordexp memory handling issue with WRDE_APPEND could allow denial of service; CVE-2026-6368.
  • GNU C Library wordexp stack overflow when expanding ~ paths with a long username could allow denial of service or arbitrary code execution; CVE-2026-6791.
  • GNU C Library SHIFT_JISX0213 character set converter hang could allow denial of service; CVE-2026-77117.
  • GNU C Library EUC_JISX0213 character set converter hang could allow denial of service; CVE-2026-80489.

Hints

  • A standard system update is sufficient to apply the fixes.
  • Ubuntu Server 22.04 LTS (Jammy Jellyfish) should update libc6 to 2.35-0ubuntu3.15.

Product Information

Vendor: Canonical

Product: Ubuntu Server

Product type: Software

Application category: Utilities

Platform: Linux

Variant: 22.04 LTS (Jammy Jellyfish)

Version: libc6 2.35-0ubuntu3.15

Vendor release date: Sep 8, 2026

Original release notes: View on vendor site

Published on updatealert.io: Sep 9, 2026

Description: Server operating system for Linux infrastructure and workloads.

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