Une nouvelle vulnérabilité d'élévation de privilèges locale dans Linux, connue sous le nom de Fragnesia, a été rendue publique. Le défaut est décrit comme étant similaire à Dirty Frag et implique un bug de logique ESP/XFRM.
La vulnérabilité permet des écritures d'octets arbitraires dans le cache de pages du noyau pour des fichiers en lecture seule. Cette capacité pourrait permettre à des attaquants locaux d'obtenir des privilèges élevés sur les systèmes affectés.
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A critical Linux vulnerability known as CopyFail, tracked as CVE-2026-31431, allows attackers to gain root access on systems running kernels since 2017. Publicly released exploit code has heightened risks for data centers and personal devices. Ubuntu's infrastructure has been offline for over a day due to a DDoS attack, hampering security communications.
A security researcher has disclosed Dirty Frag, a new Linux kernel exploit that allows local users to gain root privileges. The flaw affects major distributions and remains unpatched on most systems despite earlier fixes for a similar issue.
Rapporté par l'IA
NVIDIA engineer Sasha Levin has proposed a new mechanism for the Linux kernel that would let administrators quickly disable flawed functions on live systems. The patch, called killswitch, aims to mitigate privilege escalation risks without waiting for full fixes. It remains under review on the Linux Kernel Mailing List.
A new variant of the SysUpdate malware has been discovered targeting Linux systems, featuring advanced encryption for command-and-control communications. Security researchers at LevelBlue identified the threat during a digital forensics engagement and developed a tool to decrypt its traffic. The malware disguises itself as a legitimate system service to evade detection.