CVE-2025-6018

Guía de escalada de privilegios CVE-2025-6018 + CVE-2025-6019 中文 📋 Pasos rápidos de explotación Paso 1: Preparar imagen XFS Máquina local Create 300MB XFS image dd if=/dev/zero of=xfs.image bs=1M count=300 mkfs.xfs -f xfs.image Mount and install SUID bash mkdir mnt sudo mount -t xfs xfs.image mnt...

CVE-2025-6019_Exploit

CVE-2025-6019Exploit Primer paso: ejecute 1.sh en el dispositivo Linux para construir xfs.image Segundo paso: transfiera xfs.image al dispositivo víctima y ejecute 2.sh; lo siguiente indica que se ha logrado neko@aosc-neko205 tmp $ bash 2.sh 当前用户: neko uid=1000neko gid=1001neko...

CVE-2025-6018-CVE-2025-6019-Privilege-Escalation-Exploit

Guía de Escalada de Privilegios CVE-2025-6018 + CVE-2025-6019 中文 📋 Pasos Rápidos de Explotación Paso 1: Preparar la Imagen XFS Máquina Local Create 300MB XFS image dd if=/dev/zero of=xfs.image bs=1M count=300 mkfs.xfs -f xfs.image Mount and install SUID bash mkdir mnt sudo mount -t xfs xfs.image...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: loop: Overflow check during loop configuration The user space can configure a loop using an ioctl call. In this process, a configuration of type loopconfig is passed see the loioctl case on line 1550 of drivers/block/loop.c. This...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: f2fs: a fix was made to avoid a Use-After-Free issue in f2fswriteendio. According to syzbot, a use-after-free issue occurred in f2fswriteendio. This issue is caused by the following race condition: Loop device Unmount Worker...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053367)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053367 advisory. In the Linux kernel, the following vulnerability has been resolved: loop: Avoid updating block size under exclusive owner Syzbot came up with a reproducer where a lo...

SUSE-SU-2026:3812-1 Security update for util-linux

This update for util-linux fixes the following issues: - CVE-2026-13595: heap use-after-free read in libblkid nested partition probing bsc1269583. - CVE-2026-27456: TOCTOU race condition in the mount program when setting up loop devices bsc1261606. - Several security issues in releases prior to...

EulerOS Virtualization 2.12.0 : util-linux (EulerOS-SA-2026-2810)

According to the versions of the util-linux packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check- Time-of-Use vulnerabilit...

CVE-2026-43075

A flaw was found in the Linux kernel's ocfs2 filesystem component. This vulnerability allows a local attacker, by mounting a specially crafted and corrupted ocfs2 filesystem on a loop device, to trigger an out-of-bounds write. This occurs because the system incorrectly trusts the idcount field fr...

Fedora 43 : util-linux (2026-840b40ef4c)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-840b40ef4c advisory. upstream update, fixes security-related bugs CVE-2026-27456 - mount8 TOCTOU symlink attack via loop device. The SUID mount follows symlinks when resolving lo...

Fedora: Security Advisory (FEDORA-2026-840b40ef4c)

The remote host is missing an update for the SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE CVE-2026-27456

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...

util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup

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CVE-2026-27456

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...

AZL-81846 CVE-2026-27456 affecting package util-linux for versions less than 2.40.2-4

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...

CVE-2026-27456 util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...

CVE-2026-27456 util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...

CVE-2026-27456 util-linux: TOCTOU Race Condition in util-linux mount(8) - Loop Device Setup

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...

CVE-2026-27456

CVE-2026-27456 affects util-linux mount(8): a TOCTOU race in the SUID mount when setting up loop devices allows a local user to trick mount into opening a root-owned target by replacing the source path during the brief window between validation and open. Exploitation requires an /etc/fstab entry ...

CVE-2026-27456

util-linux is a random collection of Linux utilities. Prior to version 2.41.4, a TOCTOU Time-of-Check-Time-of-Use vulnerability has been identified in the SUID binary /usr/bin/mount from util-linux. The mount binary, when setting up loop devices, validates the source file path with user privilege...