Kata guest escape: runtime-rs guest-root to host-root escape via virtiofs

Summary In the runtime-rs standalone virtio-fs path, verified here with QEMU and verified with Cloud Hypervisor too, Kata Containers runs host virtiofsd as root with: --sandbox none --seccomp none If an attacker has root-equivalent execution inside the Kata guest VM, they can send raw FUSE reques...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000254)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000254 advisory. The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after- free issues, if about 140 GiB of RAM exists. This is related...

EUVD-2019-3160

Malware in sbrugna...

CVE-2024-38626 fuse: clear FR_SENT when re-adding requests into pending list

In the Linux kernel, the following vulnerability has been resolved: fuse: clear FRSENT when re-adding requests into pending list The following warning was reported by lee bruce: ------------ cut here ------------ WARNING: CPU: 0 PID: 8264 at fs/fuse/dev.c:300 fuserequestend+0x685/0x7e0...

K14255532: Linux kernel vulnerability CVE-2019-11487

Security Advisory Description The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h,...

SUSE CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

NewStart CGSL MAIN 4.06 : kernel Multiple Vulnerabilities (NS-SA-2022-0075)

The remote NewStart CGSL host, running version MAIN 4.06, has kernel packages installed that are affected by multiple vulnerabilities: - The offset2lib patch as used by the Linux Kernel contains a vulnerability, if RLIMITSTACK is set to RLIMINFINITY and 1 Gigabyte of memory is allocated the maxim...

USN-4770-1 glusterfs vulnerabilities

It was discovered that GlusterFS incorrectly handled network requests. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 ESM. CVE-2014-3619 It was discovered that GlusterFS incorrectly handled user permissions. An authenticated attacker...

SUSE-SU-2019:1768-1 Security update for the Linux Kernel (Live Patch 26 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-9497 fixes one issue. The following security issue was fixed: - CVE-2019-11487: The Linux kernel allowed page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c,...

openSUSE Security Update : the Linux Kernel (openSUSE-2019-1570) (SACK Panic) (SACK Slowness)

Example: The openSUSE Leap 42.3 kernel was updated to 4.4.180 to receive various security and bugfixes. The following security bugs were fixed : - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel pani...

DEBIAN-CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

CVE-2019-11487

The CVE-2019-11487 issue affects the Linux kernel prior to 5.1-rc5, enabling a page->_refcount overflow that can cause use-after-free when large RAM (≈140 GiB) is present, notably under FUSE workloads (fs/fuse/dev.c, mm/gup.c, mm/hugetlb.c, etc.). Affects multiple kernel components (fs/fuse, f...

CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

UBUNTU-CVE-2019-11487

The Linux kernel before 5.1-rc5 allows page-refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipefsi.h, kernel/trace/trace.c, mm/gup.c, and...

PT-2019-2808 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.1-rc5 Description: The issue is related to a reference count overflow in the Linux kernel, specifically with the page- refcount, which can lead to use-after-free issues. This can occur when there is...