RHEL 8 : kernel (RHSA-2024:3810)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3810 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: use-after-free in...

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

An update for kernel is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. 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...

kernel: Spectre v2 SMT mitigations problem

It was found that the Linux Kernel still left the victim process exposed to attacks in some cases even after enabling the spectre-BTI mitigation with prctl. The kernel failed to protect applications that attempted to protect against Spectre v2 leaving them open to attack from other processes...

RHEL: Add Spectre-BHB mitigation for AmpereOne

A known cache speculation vulnerability, the Branch History Injection BHI or Spectre-BHB, was found in new hw that are cores Cortex: A57, A72, A76, A77, A78, A78AE, A78C, A710, X1, X2; Neoverse: N1, N2, V1; Ampere1. Spectre-BHB is similar to Spectre v2, except that malicious code uses the shared...

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

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. 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...

RHEL 8 : kernel (RHSA-2024:3462)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:3462 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: RHEL: Add Spectre-BHB mitigation for...

CVE-2023-52746

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

SUSE CVE-2023-52746

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2021-47277

In the Linux kernel, the following vulnerability has been resolved: kvm: avoid speculation-based attacks from out-of-range memslot accesses KVM's mechanism for accessing guest memory translates a guest physical address gpa to a host virtual address using the right-shifted gpa also known as gfn an...

SUSE CVE-2021-47277

In the Linux kernel, the following vulnerability has been resolved: kvm: avoid speculation-based attacks from out-of-range memslot accesses KVM's mechanism for accessing guest memory translates a guest physical address gpa to a host virtual address using the right-shifted gpa also known as gfn an...

kernel security, bug fix, and enhancement update

4.18.0-553.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 and shim-x...

DEBIAN-CVE-2023-52746

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2023-52746

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

UBUNTU-CVE-2023-52746

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2023-52746 xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2023-52746

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2023-52746 xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2023-52746 xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrmxlate32attr int type = nlatypenla; if type XFRMAMAX return -EOPNOTSUPP; @type is then used as an array index and can be used as a Spectre v1 gadget. if nlalennla...

CVE-2023-52746

CVE-2023-52746 concerns a Spectre v1 gadget in the Linux kernel’s xfrm_xlate32_attr() path. The vulnerability arises from using the user-provided nla_type as an array index when type > XFRMA_MAX, potentially leaking kernel memory. The patch set introduces array_index_nospec() use to prevent sp...

CVE-2021-47277

In the Linux kernel, the following vulnerability has been resolved: kvm: avoid speculation-based attacks from out-of-range memslot accesses KVM's mechanism for accessing guest memory translates a guest physical address gpa to a host virtual address using the right-shifted gpa also known as gfn an...