Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4909-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4909-1 advisory. Loris Reiff discovered that the BPF implementation in the Linux kernel did not properly validate attributes in the getsockopt BPF hook. A loc...

USN-4909-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 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-4910-1 linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities

Ryota Shiga discovered that the sockopt BPF hooks in the Linux kernel could allow a user space program to probe for valid kernel addresses. A local attacker could use this to ease exploitation of another kernel vulnerability. CVE-2021-20239 It was discovered that the BPF verifier in the Linux...

USN-4907-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities

Wen Xu discovered that the xfs file system implementation in the Linux kernel did not properly validate the number of extents in an inode. An attacker could use this to construct a malicious xfs image that, when mounted, could cause a denial of service system crash. CVE-2018-13095 It was discover...

Debian DLA-2610-1 : linux-4.19 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to the execution of arbitrary code, privilege escalation, denial of service, or information leaks. CVE-2020-27170, CVE-2020-27171 Piotr Krysiuk discovered flaws in the BPF subsystem's checks for information leaks throu...

DEBIAN-CVE-2021-20286

A flaw was found in libnbd 1.7.3. An assertion failure in nbdunlockedoptgo in ilb/opt.c may lead to denial of service...

UBUNTU-CVE-2021-20286

A flaw was found in libnbd 1.7.3. An assertion failure in nbdunlockedoptgo in ilb/opt.c may lead to denial of service...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9085)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9085 advisory. - xen-blkback: fix error handling in xenblkbkmap Jan Beulich Orabug: 32492109 CVE-2021-26930 - xen-scsiback: dont 'handle' error by BUG Jan Beulich...

EulerOS Virtualization for ARM 64 3.0.6.0 : qemu-kvm (EulerOS-SA-2021-1527)

According to the versions of the qemu-kvm packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator. This flaw...

Amazon Linux 2 : kernel (ALAS-2021-1600)

The version of kernel installed on the remote host is prior to 4.14.219-161.340. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1600 advisory. 2024-05-23: CVE-2023-1390 was added to this advisory. A use-after-free flaw was found in kernel/trace/ringbuffer.c...

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq 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.

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CVE-2021-3348

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. Mitigation To mitigate this issue, prevent the module nbd from being loaded. Please see for information on how to blacklist a...

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...

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...

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...

Design/Logic Flaw

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...

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...

Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2021-1046)

The remote host is missing an update for the Huawei EulerOS 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...

Unbreakable Enterprise kernel-container security update

4.14.35-2025.402.2.1.el7 - powercap: restrict energy meter to root access Kanth Ghatraju Orabug: 32040805 CVE-2020-8694 CVE-2020-8695 4.14.35-2025.402.2.el7 - ocfs2: fix remounting needed after setfacl command Gang He - Fix multiple variable definition with syzkaller Hans Westgaard Ry Orabug:...

EulerOS 2.0 SP8 : qemu (EulerOS-SA-2020-2320)

According to the versions of the qemu package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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...