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...

Ubuntu: Security Advisory (USN-4909-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...

USN-4909-1: Linux kernel vulnerabilities

Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of service system crash. CVE-2021-20194 Olivier Benjamin, Norbert Manthey, Martin Mazein, and Jan H...

USN-4884-1: Linux kernel (OEM) vulnerabilities

Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of service system crash. CVE-2021-20194 It was discovered that the priority inheritance futex...

USN-4884-1 linux-oem-5.10 vulnerabilities

Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A local attacker could possibly use this to cause a denial of service system crash. CVE-2021-20194 It was discovered that the priority inheritance futex...

libnbd 安全漏洞

libnbd is a library for editing NBD Network Block Device clients. A security vulnerability exists in libnbd 1.7.3, which stems from the fact that a failure of the nbd unlocked opt go in ilb opt.c assertion may result in a denial of service...

DEBIAN-CVE-2021-3348

nbdaddsocket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndbqueuerq use-after-free that could be triggered by local attackers with access to the nbd device via an I/O request at a certain point during device setup, aka CID-b98e762e3d71...

UBUNTU-CVE-2021-3348

nbdaddsocket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndbqueuerq use-after-free that could be triggered by local attackers with access to the nbd device via an I/O request at a certain point during device setup, aka CID-b98e762e3d71...

An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting in a denial of service.

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QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client

An assertion failure issue was found in the Network Block DeviceNBD Server of the QEMU. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting ...

USN-4439-1 linux-gke-5.0, linux-oem-osp1 vulnerabilities

It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service system crash. CVE-2019-16089 It was discovered that the btrfs file system...

USN-4439-1: Linux kernel vulnerabilities

It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service system crash. CVE-2019-16089 It was discovered that the btrfs file system...

USN-4425-1 linux, linux-aws, linux-azure, linux-azure-5.4, linux-gcp, linux-hwe-5.4, linux-kvm, linux-oracle, linux-raspi, linux-raspi-5.4, linux-riscv vulnerabilities

It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service system crash. CVE-2019-16089 It was discovered that the kernel-user space relay...

USN-4425-1: Linux kernel vulnerabilities

It was discovered that the network block device nbd implementation in the Linux kernel did not properly check for error conditions in some situations. An attacker could possibly use this to cause a denial of service system crash. CVE-2019-16089 It was discovered that the kernel-user space relay...

QEMU Denial of Service Vulnerability (CNVD-2020-35929)

QEMU Quick Emulator is a set of simulation processor software by French software developer Fabrice Bellard. The software is fast, cross-platform and other characteristics. A security vulnerability exists in the Network Block Device NBD Server in versions of QEMU prior to 5.0.1. A remote attacker...

CVE-2020-10761

An assertion failure issue was found in the Network Block DeviceNBD Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the...

DEBIAN-CVE-2020-10761

An assertion failure issue was found in the Network Block DeviceNBD Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the...

CVE-2020-10761

An assertion failure issue was found in the Network Block DeviceNBD Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the...

UBUNTU-CVE-2020-10761

An assertion failure issue was found in the Network Block DeviceNBD Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the...