CVE-2021-46981

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

UBUNTU-CVE-2021-46981

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

Null pointer dereference

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

CVE-2021-46981

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

CVE-2021-46981

CVE-2021-46981 affects the Linux kernel nbd subsystem where a NULL pointer in flush_workqueue could be dereferenced when opening /dev/nbdX and then disconnecting, leading to a kernel crash. The fix adds a guard in nbd_disconnect_and_put to check nbd->recv_workq before use. Connected advisories...

CVE-2021-46981 nbd: Fix NULL pointer in flush_workqueue

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

CVE-2021-46981 nbd: Fix NULL pointer in flush_workqueue

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

CVE-2021-46981

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

NBD Tools: Multiple Vulnerabilities

Background The NBD Tools are the Network Block Device utilities allowing one to use remote block devices over a TCP/IP network. It includes a userland NBD server. Description Multiple vulnerabilities have been discovered in NBD Tools. Please review the CVE identifiers referenced below for details...

GLSA-202402-10 : NBD Tools: Multiple Vulnerabilities

The remote host is affected by the vulnerability described in GLSA-202402-10 NBD Tools: Multiple Vulnerabilities - In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized...

CVE-2023-5871

A flaw was found in libnbd, due to a malicious Network Block Device NBD, a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service...

Hardcoded credentials

A flaw was found in libnbd, due to a malicious Network Block Device NBD, a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service...

UBUNTU-CVE-2023-5871

A flaw was found in libnbd, due to a malicious Network Block Device NBD, a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service...

CVE-2023-5871

A flaw was found in libnbd, due to a malicious Network Block Device NBD, a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service...

CVE-2023-5871 Libnbd: malicious nbd server may crash libnbd

A flaw was found in libnbd, due to a malicious Network Block Device NBD, a protocol for accessing Block Devices such as hard disks over a Network. This issue may allow a malicious NBD server to cause a Denial of Service...

CVE-2023-5871

CVE-2023-5871: libnbd vulnerability where a malicious NBD server can crash or misbehave libnbd, causing a Denial of Service. Affected software includes libnbd in multiple distros (e.g., Red Hat/RHEL 9, Oracle Linux, AlmaLinux, SUSE/openSUSE, MiracleLinux) with advisories noting fixes in libnbd (e...

Denial Of Service

libnbd is vulnerable to Denial of Service DoS. The vulnerability is due to a flaw in the handling of 64-bit extended headers in the NBD protocol when dealing with large flag values in the server's reply to the NBDCMDBLOCKSTATUS command...

Fedora: Security Advisory (FEDORA-2023-00c130636a)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 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...

PT-2024-14769

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free UAF issue has been resolved in the Linux kernel. The issue occurs when someone tries to open an nbd device right after nbd put, since nbd has been freed in nbd dev remov...

openSUSE 15 Security Update : libnbd (SUSE-SU-2023:4222-1)

The remote openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2023:4222-1 advisory. - A flaw was found in libnbd. A server can reply with a block size larger than 2^63 the NBD spec states the size is a 64-bit unsigned value. This issue could...