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Debian LTS openssl Important Use-After-Free NULL Pointer Issues DLA-4624-1

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Ubuntu 20.04 alsa-lib Important Denial of Service Fix USN-8044-2

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Ubuntu 26.04 LTS node-shell-quote Important Denial of Service CVE-2026-9277

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Mageia 9 Suricata Critical Performance Security Issues MGASA-2026-0181

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Mageia 9 PackageKit Important TOCTOU Race Escalation CVE-2026-41651

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Mageia 9 Unbound Critical Remote Code Execution Advisory 2026-0034

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Ubuntu 26.04 LTS Netatalk Multiple Security Issues USN-8395-1

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Fedora 43 mingw-objfw 1.5.5 Update Security Fix FEDORA-2026-de23fedf3e

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Fedora 43 objfw Important Update 1.5.5 Bug Fixes June 2026

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Debian 11 python-tornado Critical Custom Phrases DoS CVE-2025-67724

Tornado is a scalable, non-blocking Python web framework and asynchronous networking library. CVE-2025-67724 Custom reason phrases can cause multiple vulnerabilities (like XSS, header injection, ...) due to being used unescaped in HTTP headers.. ------------------------------------------------------------------------- Debian LTS Advisory DLA-4461-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/lts/security/ Daniel Leidert February 01, 2026 https://wiki.debian.org/LTS ------------------------------------------------------------------------- Package : python-tornado Version : 6.1.0-1+deb11u3 CVE ID : CVE-2025-67724 CVE-2025-67725 CVE-2025-67726 Debian Bug : 1122660 1122661 1122663 Tornado is a scalable, non-blocking Python web framework and asynchronous networking library. CVE-2025-67724 Custom reason phrases can cause multiple vulnerabilities (like XSS, header injection, ...) due to being used unescaped in HTTP headers. CVE-2025-67725 A single maliciously crafted HTTP request can cause a possible DoS due to quadratic performance of repeated header lines. CVE-2025-67726 An inefficient algorithm when parsing parameters for HTTP header values can potentially cause a DoS. For Debian 11 bullseye, these problems have been fixed in version 6.1.0-1+deb11u3. We recommend that you upgrade your python-tornado packages. For the detailed security status of python-tornado please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/python-tornado Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Upgrade python-tornado in Debian for several critical fixes against custom reason phrase issues and potential DoS attacks.. Debian Tornado XSS DoS. . Severity: Critical. LinuxSecurity.com Team

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