nbd 缓冲区错误漏洞

nbd is a Linux kernel network block device tool. It is used to use remote block devices over TCP/IP networks. nbd versions prior to 3.24 of nbd-server suffer from a buffer overflow vulnerability that can be exploited by an attacker to cause a parsing buffer overflow in the name field by sending a...

nbd 输入验证错误漏洞

nbd is a tool for Linux kernel network block devices. It is used to use remote block devices over TCP/IP networks. nbd versions prior to 3.24 have an input validation error vulnerability in nbd-server, which stems from an integer overflow in nbd-server, resulting in a heap-based buffer overflow...

RHEL 7 : kpatch-patch (RHSA-2022:0592)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0592 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel...

RHEL 8 : kpatch-patch (RHSA-2022:0590)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2022:0590 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel...

[SECURITY] Fedora 35 Update: libnbd-1.10.5-1.fc35

NBD =EF=BF=BD=EF=BF=BD=EF=BF=BD Network Block Device =EF=BF=BD=EF=BF=BD=EF=BF =BD is a protocol for accessing Block Devices hard disks and disk-like things over a Network. This is the NBD client library in userspace, a simple library for writing NBD clients. The key features are: Synchronous and...

Fedora: Security Advisory for libnbd (FEDORA-2022-2fa5931425)

The remote host is missing an update for the Copyright C 2022 Greenbone Networks GmbH 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-or-later This program is free software; you can...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

QEMU: block: fdc: null pointer dereference may lead to guest crash

A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulti...

RHEL 8 : kernel (RHSA-2022:0344)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2022:0344 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xfs: raw block device data leak in...

Important: Red Hat Security Advisory: kpatch-patch security update

An update is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Mageia: Security Advisory (MGASA-2017-0346)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 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...

Important: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c

A use after free flaw in the Linux kernel network block device NBD subsystem was found in the way user calls an ioctl NBDSETSOCK at a certain point during device setup...

kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c

A use after free flaw in the Linux kernel network block device NBD subsystem was found in the way user calls an ioctl NBDSETSOCK at a certain point during device setup...

The vulnerability of the Network Block Device (NBD) emulator’s hardware emulation software, QEMU, stems from improper resource management by external emulators. This allows a malicious actor to trigger a service failure.

The vulnerability of the Network Block Device NBD emulation software from QEMU lies in the sending of a request by the client, which corresponds to a specification that is located within the maximum allowable range of request length. Exploiting this vulnerability allows an attacker who operates...

blktrace: Buffer overflow

Background blktrace shows detailed information about what is happening on a block device IO queue. Description A crafted file could cause a buffer overflow in the ‘devmapread’ function because the device and devno arrays are too small. Impact A remote attacker could entice a user to open a...

kernel: use-after-free in fs/block_dev.c

A use-after-free flaw was observed in blkdevget, in fs/blockdev.c after a call to blkdevget fails, and its refcount gets freed/released. This problem may cause a denial of service problem with a special user privilege, and may even lead to a confidentiality issue...

USN-4979-1: Linux kernel vulnerabilities

Kiyin 尹亮 discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service system crash. CVE-2020-25670 Kiyin 尹亮 discovered that the NFC LLCP protocol implementation in the Linux kernel did n...

kernel: SCSI target (LIO) write to any block on ILO backstore

A flaw was found in the Linux kernel’s implementation of the Linux SCSI target host, where an authenticated attacker could write to any block on the exported SCSI device backing store. This flaw allows an authenticated attacker to send LIO block requests to the Linux system to overwrite data on t...

GLSA-202105-03 : GPT fdisk: Integer underflow

The remote host is affected by the vulnerability described in GLSA-202105-03 GPT fdisk: Integer underflow It was discovered that ReadLogicalParts function in basicmbr.cc was missing a bounds check. Impact : A local attacker could entice a user to insert a malicious formatted block device USB stic...