CVE-2021-29631

In FreeBSD 13.0-STABLE before n246941-20f96f215562, 12.2-STABLE before r370400, 11.4-STABLE before r370399, 13.0-RELEASE before p4, 12.2-RELEASE before p10, and 11.4-RELEASE before p13, certain VirtIO-based device models in bhyve failed to handle errors when fetching I/O descriptors. A malicious...

CVE-2021-3748

A use-after-free vulnerability was found in the virtio-net device of QEMU. It could occur when the descriptor's address belongs to the non direct access region, due to numbuffers being set after the virtqueue elem has been unmapped. A malicious guest could use this flaw to crash QEMU, resulting i...

OESA-2021-1324 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of...

FreeBSD : FreeBSD -- Missing error handling in bhyve(8) device models (a6d5d4c1-0564-11ec-b69d-4062311215d5)

Certain VirtIO-based device models failed to handle errors when fetching I/O descriptors. Such errors could be triggered by a malicious guest. As a result, the device model code could be tricked into operating on uninitialized I/O vectors, leading to memory corruption. Impact : A malicious guest...

FreeBSD -- Missing error handling in bhyve(8) device models

Problem Description: Certain VirtIO-based device models failed to handle errors when fetching I/O descriptors. Such errors could be triggered by a malicious guest. As a result, the device model code could be tricked into operating on uninitialized I/O vectors, leading to memory corruption. Impact...

In drivers/char/virtio_console.c in the Linux kernel before 5.13.4 data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior

...

Information Disclosure

qemu is vulnerable to information disclosure. The vulnerability was found in the virtio vhost-user GPU device due to a flaw in virglcmdgetcapsetinfo in contrib/vhost-user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit this issue to leak memory...

virtio-win bug fix and enhancement update

An update is available for virtio-win. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The virtio-win package provides paravirtualized network drivers for most...

DEBIAN-CVE-2021-38160

In drivers/char/virtioconsole.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf-len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; th...

AZL-6580 CVE-2021-38160 affecting package kernel for versions less than 5.10.78.1-1

In drivers/char/virtioconsole.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf-len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; th...

CVE-2021-38160

In drivers/char/virtioconsole.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf-len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; th...

UBUNTU-CVE-2021-38160

In drivers/char/virtioconsole.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf-len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; th...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that originates in the Linux kernel driver char virtio console.c. Data corruption or loss may be triggered by an untrusted...

UVI-2021-1001477 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.4.276 by commit...

GSD-2021-1001446 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.276 by commit...

UVI-2021-1001446 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.276 by commit...

GSD-2021-1001410 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.240 by commit...

UVI-2021-1001410 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.14.240 by commit...

GSD-2021-1001366 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.198 by commit...

UVI-2021-1001332 virtio-blk: Fix memory leak among suspend/resume procedure

virtio-blk: Fix memory leak among suspend/resume procedure This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.134 by commit...