Vulners
Lucene search
An issue was discovered in the Linux kernel through 5.10.1 as used with Xen through 4.14.x. The Linux kernel PV block backend expects the kernel thread handler to reset ring->xenblkd to NULL when stopped. However the handler may not have time to run if the frontend quickly toggles between the states connect and disconnect. As a consequence the block backend may re-use a pointer after it was freed. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. Privilege escalation and information leaks cannot be ruled out. This only affects systems with a Linux blkback.
| Reporter | Title | Published | Views | Family All 238 |
|---|---|---|---|---|
 | Amazon Linux 2 : kernel (ALAS-2021-1588) | 26 Jan 202100:00 | – | nessus |
| Amazon Linux 2 : kernel (ALASKERNEL-5.4-2022-019) | 2 May 202200:00 | – | nessus |
| Amazon Linux AMI : kernel (ALAS-2021-1477) | 26 Jan 202100:00 | – | nessus |
| Debian DLA-2557-1 : linux-4.19 security update | 16 Feb 202100:00 | – | nessus |
| Debian DLA-2586-1 : linux security update | 10 Mar 202100:00 | – | nessus |
| Debian DSA-4843-1 : linux - security update | 2 Feb 202100:00 | – | nessus |
| EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1246) | 5 Feb 202100:00 | – | nessus |
| EulerOS 2.0 SP9 : kernel (EulerOS-SA-2022-1292) | 2 Mar 202200:00 | – | nessus |
| EulerOS 2.0 SP10 : kernel (EulerOS-SA-2022-1508) | 20 Apr 202200:00 | – | nessus |
| EulerOS Virtualization 2.10.0 : kernel (EulerOS-SA-2022-2026) | 15 Jul 202200:00 | – | nessus |
10
Node
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
19 Dec 2020 00:00Current
7.9High risk
Vulners AI Score7.9
CVSS 27.2
CVSS 3.18.8
EPSS0.00388