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...

DEBIAN-CVE-2021-20196

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...

kernel: incomplete permission checking for access to rbd devices

A flaw was found in the capabilities check of the rados block device functionality in the Linux kernel. Incorrect capability checks could alllow a local user with root priviledges but no capabilities to add or remove Rados Block Devices from the system...

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...

SUSE: Security Advisory (SUSE-SU-2017:2847-1)

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...

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...

sanlock bug fix and enhancement update

The sanlock packages provide a shared storage lock manager. Hosts with shared access to a block device or a file can use sanlock to synchronize their activities. VDSM and libvirt use sanlock to synchronize access to shared devices or files. Bug Fixes and Enhancements: Support 50 concurrent...

ASB-A-174737742

In blkdevget of blockdev.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation...