CVE-2022-3643

CVE-2022-3643: Linux kernel netback driver vulnerability allowing a guest to trigger NIC interface reset/abort/crash by sending packets with split headers. Root cause is an assumption that packet protocol headers reside in the SKB's linear section; certain NICs (e.g., Cisco ENIC, Broadcom NetXtre...

CVE-2022-3643

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an unwritten? assumption in the rest of the Linux network stack that packet...

CVE-2022-3643

Guests can trigger NIC interface reset/abort/crash via netback It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an unwritten? assumption in the rest of the Linux network stack that packet...

Guests can trigger NIC interface reset/abort/crash via netback

ISSUE DESCRIPTION It is possible for a guest to trigger a NIC interface reset/abort/crash in a Linux based network backend by sending certain kinds of packets. It appears to be an unwritten? assumption in the rest of the Linux network stack that packet protocol headers are all contained within th...

kernel: ibmvnic: free reset-work-item when flushing

A memory leak flaw was found in the Linux kernel’s IBM Virtual Network Interface Controller ibmvnic driver. This issue involved not properly freeing memory associated with a reset work item when the reset work queue is flushed, causing the reset-work-item not to be deallocated. This flaw allows a...

Amazon Linux 2022 : bpftool, kernel, kernel-devel (ALAS2022-2022-185)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-185 advisory. A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root host user-level application to crash the host kernel by creating a confidential guest V...

SUSE SLES12: xen / xen-devel / xen-doc-html / xen-libs / xen-libs-32bit / etc (SUSE-SU-2022:3728-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:3728-1 advisory. - CVE-2022-26365: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with...

Ubuntu 18.04 LTS : Linux kernel (AWS) vulnerabilities (USN-5682-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5682-1 advisory. It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5668-1)

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-5668-1 advisory. It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this...

Excessive grant frame usage in Windows xenbus drivers after version 9.1.3

A VM with 2 VBD, 8 vCPUs, 7 VIFs may consume over 90 grant tables, but ONLY consume 26grant tables when running with xen PV driver version 9.1.2. It will lead to virtual NIC initialization failure issue after Windows VM startup. Device manager shows NICs are notinitialized: Setupapi.log : Device...

Ubuntu 20.04 LTS : Linux kernel (GKE) vulnerabilities (USN-5648-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5648-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

NIC Knot Resolver Denial of Service Vulnerability

Knot Resolver is a cached DNS resolver implementation that includes a resolver library and daemon. A denial of service vulnerability exists in NIC Knot Resolver versions prior to 5.5.3. The vulnerability stems from not properly handling incoming error messages and can be exploited by a remote...

Ubuntu 22.04 LTS : Linux kernel (Oracle) vulnerabilities (USN-5640-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5640-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

Ubuntu 22.04 LTS : Linux kernel vulnerabilities (USN-5633-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5633-1 advisory. It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of-...

SUSE: Security Advisory (SUSE-SU-2022:2880-1)

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...

CVE-2022-1651

A memory leak flaw was found in the Linux kernel in acrndevioctl in the drivers/virt/acrn/hsm.c function in how the ACRN Device Model emulates virtual NICs in VM. This flaw allows a local privileged attacker to leak unauthorized kernel information, causing a denial of service...

EulerOS Virtualization 2.10.0 : qemu (EulerOS-SA-2022-2043)

According to the versions of the qemu package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the aticursordefine routine while...

EulerOS Virtualization 2.10.1 : qemu (EulerOS-SA-2022-2071)

According to the versions of the qemu package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - In QEMU 4.1.0, an out-of-bounds read flaw was found in the ATI VGA implementation. It occurs in the aticursordefine routine while...

SUSE SLES12 Security Update : kernel (SUSE-SU-2022:2377-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2377-1 advisory. - The Linux kernel through 5.8.13 does not properly enforce the Secure Boot Forbidden Signature Database aka dbx protection...

CVE-2022-33740

Linux disk/nic frontends data leaks This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365,...