Design/Logic Flaw

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

CVE-2022-26364

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

UBUNTU-CVE-2022-26363

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

Design/Logic Flaw

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

CVE-2022-26362

x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables; updates need auditing by...

CVE-2022-26364

CVE-2022-26364 is one of multiple Xen vulnerabilities described in advisories (e.g., GLSA-202208-23, SUSE/Security updates) affecting Xen on x86 PV guests. The issue stems from CPU cache non-coherency interactions with Xen’s page/typeref safety checks, which can cause a guest to incorrectly belie...

CVE-2022-26363

CVE-2022-26363 and related Xen issues arise from CPU cache non-coherency interacting with Xen’s safety checks for page access. The vulnerability is in the x86 PV/hypervisor path where a safe TLB/pagetable state can be invalidly considered safe due to cache/memory divergence, potentially enabling ...

CVE-2022-26363

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

CVE-2022-26363

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

x86 pv: Insufficient care with non-coherent mappings

ISSUE DESCRIPTION Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables; updates need auditing by Xen. Unfortunately, Xen's...

CVE-2022-26362: Concurrent Execution using Shared Resource with Improper Synchronization

x86 pv: Race condition in typeref acquisition Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to maintain invariants required for Xen's safety, e.g. PV guests may not have direct writeable access to pagetables; updates need auditing by...

CVE-2022-26364: Undefined Security Weakness

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

Solar-Log GmbH 安全漏洞

Solar-Log GmbH is a data logger for monitoring PV plants from Solar-Log Germany. version 2.8.4-56 and 3.5.2-85 of Solar-Log GmbH contains a security vulnerability that can be exploited by attackers to cause privilege escalation...

CVE-2022-26363: Undefined Security Weakness

x86 pv: Insufficient care with non-coherent mappings This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Xen maintains a type reference count for pages, in addition to a regular reference count. This scheme is used to...

Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5467-1)

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-5467-1 advisory. It was discovered that the Linux kernel did not properly restrict access to the kernel debugger when booted in secure boot environments. A...

CVE-2022-23038

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

CVE-2022-23036

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

CVE-2022-23040

Linux PV device frontends vulnerable to attacks by backends This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. Several Linux PV device frontends are using the grant table interfaces for removing access rights of the...

Slackware Linux 15.0 kernel-generic Multiple Vulnerabilities (SSA:2022-129-01)

The version of kernel-generic installed on the remote host is prior to 5.15.38 / 5.15.38smp. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2022-129-01 advisory. - Non-transparent sharing of branch predictor selectors between contexts in some IntelR Processors may...

SUSE SLES12: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2022:1402-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:1402-1 advisory. The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: -...