Linuxsecurity

Critical klibc Vulnerability in Multiple Ubuntu Releases

First seen 15 Jan 2026, 06:50 UTC • Ubuntu

•39.2

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A critical vulnerability in klibc affects several Ubuntu releases, including 25.10 and 24.04 LTS. The issue arises from improper handling of integer arithmetic in zlib, which could allow an attacker to execute arbitrary code or cause a denial of service. All supported versions from 14.04 to 25.10 are impacted.

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Critical klibc Vulnerability in Multiple Ubuntu Releases

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