USN-6081-1: Linux kernel vulnerabilities

Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement speculative execution barriers in usercopy functions in certain situations. A local attacker could use this to expose sensitive information kernel memory. CVE-2023-0459 Xingyuan Mo discovered that the...

USN-6081-1 linux, linux-aws, linux-aws-hwe, linux-kvm vulnerabilities

Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement speculative execution barriers in usercopy functions in certain situations. A local attacker could use this to expose sensitive information kernel memory. CVE-2023-0459 Xingyuan Mo discovered that the...

Moderate: Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel: TLB flush operations are mishandled in certain KVM_VCPU_PREEMPTED leading to guest malfunctioning

A flaw was found in the x86 KVM subsystem in kvmstealtimesetpreempted in arch/x86/kvm/x86.c in the Linux kernel. Unprivileged guest users can compromise the guest kernel because TLB flush operations are mishandled in certain KVMVCPUPREEMPTED situations...

kernel: ice: Fix call trace with null VSI during VF reset

In the Linux kernel, the following vulnerability has been resolved: ice: Fix call trace with null VSI during VF reset During stress test with attaching and detaching VF from KVM and simultaneously changing VFs spoofcheck and trust there was a call trace in iceresetvf that VF's VSI is null...

SUSE CVE-2023-2680

This CVE exists because of an incomplete fix for CVE-2021-3750. More specifically, the qemu-kvm package as released for Red Hat Enterprise Linux 9.1 via RHSA-2022:7967 included a version of qemu-kvm that was actually missing the fix for CVE-2021-3750...

[SECURITY] Fedora 38 Update: qemu-7.2.1-2.fc38

qemu is an open source virtualizer that provides hardware emulation for the KVM hypervisor. qemu acts as a virtual machine monitor together with the KVM kernel modules, and emulates the hardware for a full system such as a PC and its associated peripherals...

ALSA-2023:2757 Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

Kernel-based Virtual Machine KVM offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the...

Ubuntu 16.04 ESM / 18.04 LTS : Linux kernel vulnerabilities (USN-6081-1)

The remote Ubuntu 16.04 ESM / 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6081-1 advisory. Jordy Zomer and Alexandra Sandulescu discovered that the Linux kernel did not properly implement speculative execution barriers in usercopy...

qemu-kvm security update

6.1.1-6.el9 - Update changelog Karl Heubaum Orabug: 35343538 - ebpf: fix compatibility with libbpf 1.0+ Shreesh Adiga Orabug: 35268538 - ebpf: replace deprecated bpfprogramsetsocketfilter Haochen Tong Orabug: 35268538 - CVE-2023-1544 is not applicable to Oracle QEMU 6.1.1 Karl Heubaum Orabug:...

ALSA-2023:2932 Important: edk2 security update

EDK Embedded Development Kit is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. Security Fixes: openssl: X.400 address type confusion in X.509 GeneralName CVE-2023-0286 openssl: timing attack in RSA Decryption...

Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update

Kernel-based Virtual Machine KVM offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6080-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6080-1 advisory. It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a...

Oracle Linux 9 : kernel (ELSA-2023-2458)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-2458 advisory. - A vulnerability has been found in Linux Kernel and classified as problematic. This vulnerability affects the function inet6streamops/inet6dgramops of...

virt:kvm_utils security update

hivex libguestfs libguestfs-winsupport libiscsi libnbd libvirt 5.7.0-40 - build: change dependency to allow post install erasing of /usr/bin/nc Wim ten Have Orabug: 35289777 - util: Make virFileClose quiet on success Andrea Bolognani Orabug: 35090886 5.7.0-39 - exadata: update maxvcpus for vNUMA...

qemu-kvm security, bug fix, and enhancement update

7.2.0-14 - Rebuild for 9.2 release - Resolves: bz2173590 bugs in emulation of BMI instructions for libguestfs without KVM - Resolves: bz2156876 virtual networkrhel7.9guest qemu-kvm: vhost vring error in virtqueue 1: Invalid argument 22 7.2.0-13 -...

Oracle Linux 9 : qemu-kvm (ELSA-2023-2162)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-2162 advisory. - Resolves: bz2149108 CVE-2022-4172 qemu-kvm: QEMU: ACPI ERST: memory corruption issues in readerstrecord and writeerstrecord rhel-9 - Resolves:...

AlmaLinux 9 : qemu-kvm (ALSA-2023:2162)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:2162 advisory. - An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the extended format. A malicious client could use...

SUSE SLED15: cluster-md-kmp-64kb / cluster-md-kmp-default / dlm-kmp-64kb / etc (SUSE-SU-2023:2140-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:2140-1 advisory. The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security and bugfixes. Th...

RHEL 9 : qemu-kvm (RHSA-2023:2162)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2162 advisory. Kernel-based Virtual Machine KVM is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide th...