PT-2022-33629 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to 5.19.2 Description: A potential security issue exists in the KVM x86/mmu component, related to the treatment of NX as a valid SPTE bit for NPT. The actual impact and attack plausibility have not yet been proven...

PT-2022-33517 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.19.2 Description: The issue concerns the KVM in the Linux Kernel, where the Accessed/Dirty bits are not set for the ZERO PAGE. The actual impact and attack plausibility of this issue have not yet been proven...

Unbreakable Enterprise kernel security update

4.14.35-2047.517.3 - KVM: x86: use raw clock values consistently Paolo Bonzini Orabug: 34575637 - KVM: x86: reorganize pvclockgtoddata members Paolo Bonzini Orabug: 34575637 - KVM: x86: switch KVMCLOCK base to monotonic raw clock Marcelo Tosatti Orabug: 34575637 4.14.35-2047.517.2 - kernfs: Repla...

Unbreakable Enterprise kernel-container security update

4.14.35-2047.517.3.el7 - KVM: x86: use raw clock values consistently Paolo Bonzini Orabug: 34575637 - KVM: x86: reorganize pvclockgtoddata members Paolo Bonzini Orabug: 34575637 - KVM: x86: switch KVMCLOCK base to monotonic raw clock Marcelo Tosatti Orabug: 34575637 4.14.35-2047.517.2.el7 - kernf...

PT-2022-33638 · Linux · Kvm

Name of the Vulnerable Software and Affected Versions: KVM versions prior to v5.19.2 Description: The issue concerns the KVM's nVMX snapshot pre-VM-Enter DEBUGCTL for the !nested run pending case. The actual impact and attack plausibility have not yet been proven. Recommendations: For versions...

RHEL 7 : kernel (RHSA-2021:4768)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4768 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use-after-free in...

kernel security, bug fix, and enhancement update

4.18.0-372.26.1.0.16.OL8 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32...

kernel: x86/fpu: KVM: Set the base guest FPU uABI size to sizeof(struct kvm_xsave)

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: KVM: Set the base guest FPU uABI size to sizeofstruct kvmxsave Set the starting uABI size of KVM's guest FPU to 'struct kvmxsave', i.e. to KVM's historical uABI size. When saving FPU state for usersapce, KVM well, now th...

Moderate: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel 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 available for each vulnerability from the...

kernel security, bug fix, and enhancement update

An update is available for kernel. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The kernel packages contain the Linux kernel, the core of any Linux operating...

RLSA-2022:6460 Moderate: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: Incomplete cleanup of multi-core shared buffers aka SBDR CVE-2022-21123 Incomplete cleanup of microarchitectural fill buffers aka SBDS CVE-2022-21125 Incomplete cleanup in specific special regist...

rhel and virt-devel:rhel bug fix and enhancement update

An update is available for libguestfs, libnbd, libtpms, libguestfs-winsupport, nbdkit, supermin, libiscsi, hivex, libvirt, netcf, perl-Sys-Virt, seabios, qemu-kvm, swtpm, virt-v2v, sgabios, libvirt-dbus, libvirt-python. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS...

Moderate: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: Incomplete cleanup of multi-core shared buffers aka SBDR CVE-2022-21123 Incomplete cleanup of microarchitectural fill buffers aka SBDS CVE-2022-21125 Incomplete cleanup in specific special regist...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: i2c: Fix a potential use after free Free the adap structure only after we are done using it. This patch just moves the putdevice down a bit to avoid the use after free. wsa: added comment to the code, added Fixes...

ALSA-2022:6460 Moderate: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: Incomplete cleanup of multi-core shared buffers aka SBDR CVE-2022-21123 Incomplete cleanup of microarchitectural fill buffers aka SBDS CVE-2022-21125 Incomplete cleanup in specific special regist...

USN-5602-1 linux-raspi vulnerabilities

Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow management. A local attacker could possibly use this to cause a denial of service. CVE-2021-33061 Moshe Kol, Amit Klein and Yossi Gilad discovered that the I...

Ubuntu 22.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-5602-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5602-1 advisory. Asaf Modelevsky discovered that the IntelR 10GbE PCI Express ixgbe Ethernet driver for the Linux kernel performed insufficient control flow management. A...

CVE-2022-39189

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. Mitigation Mitigation for this issue is...

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls causing a kernel oops condition that results in a denial of service.

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Amazon Linux 2022 : bpftool, kernel, kernel-devel (ALAS2022-2022-083)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-083 advisory. A flaw was found in unrestricted eBPF usage by the BPFBTFLOAD, leading to a possible out-of-bounds memory write in the Linux kernel's BPF subsystem due to the way a user loads BTF. This flaw...