960 matches found
Linux disk/nic frontends data leaks
ISSUE DESCRIPTION Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend CVE-2022-26365, CVE-2022-33740. Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K...
Citrix Hypervisor Security Update
A security issue has been identified in Citrix Hypervisor 7.1 LTSR CU2 that may allow privileged code in a PV guest VM to compromise the host. Citrix believes that there would be significant complexity in performing this attack in Citrix Hypervisor. The issue has the following CVE identifier:...
Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2022-9478)
The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2022-9478 advisory. - perf: Fix sysperfeventopen race against self Peter Zijlstra Orabug: 34207044 CVE-2022-1729 - debug: Lock down kgdb Stephen Brennan Orabug: 34207043...
Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2022-9479)
The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2022-9479 advisory. - perf: Fix sysperfeventopen race against self Peter Zijlstra Orabug: 34211086 CVE-2022-1729 - debug: Lock down kgdb Stephen Brennan Orabug: 342110...
Incorrect Logic
x86 pv is using an incorrect logic. The vulnerability exists due to insufficient care with non-coherent mappings which allows an attacker to perform unwanted actions...
Solar-Log GmbH has an unspecified vulnerability
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-2022-26364
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...
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...
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...
DEBIAN-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...
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...