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CVE-2021-3559

Quick assessment

Affected
n/a libvirt
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat libvirt是美国红帽（Red Hat）公司的一个用于实现Linux虚拟化功能的Linux API，它支持各种Hypervisor，包括Xen和KVM，以及QEMU和用于其他操作系统的一些虚拟产品。 libvirt 存在安全漏洞，该漏洞只影响具有支持中介设备(例如，GRID驱动程序)的PCI设备和驱动程序的主机。使用只读连接的非特权客户端可以使用这个缺陷，通过执行“nodedev-list” virsh命令使libvirt守护进程崩溃。

AI Predicted 5.3 Difficulty: Moderate EPSS 1.03% · P61
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I. Basic Information for CVE-2021-3559

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in libvirt in the virConnectListAllNodeDevices API in versions before 7.0.0. It only affects hosts with a PCI device and driver that supports mediated devices (e.g., GRID driver). This flaw could be used by an unprivileged client with a read-only connection to crash the libvirt daemon by executing the 'nodedev-list' virsh command. The highest threat from this vulnerability is to system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat libvirt 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat libvirt是美国红帽（Red Hat）公司的一个用于实现Linux虚拟化功能的Linux API，它支持各种Hypervisor，包括Xen和KVM，以及QEMU和用于其他操作系统的一些虚拟产品。 libvirt 存在安全漏洞，该漏洞只影响具有支持中介设备(例如，GRID驱动程序)的PCI设备和驱动程序的主机。使用只读连接的非特权客户端可以使用这个缺陷，通过执行“nodedev-list” virsh命令使libvirt守护进程崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- libvirt libvirt 7.0.0 -

II. Public POCs for CVE-2021-3559

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III. Intelligence Information for CVE-2021-3559

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Vendor Advisories for CVE-2021-3559 (2)

Same Patch Batch · n/a · 2021-05-24 · 47 CVEs total

CVE-2021-23387 5.4 MEDIUM Open Redirect
CVE-2020-28903 Nagios 跨站脚本漏洞
CVE-2020-25411 Project Worlds Online Examination System 跨站请求伪造漏洞
CVE-2021-21988 Vmware VMware Workstation 和 Horizon Client 缓冲区错误漏洞
CVE-2021-21987 Vmware VMware Workstation缓冲区错误漏洞
CVE-2021-25938 ArangoDB 跨站脚本漏洞
CVE-2021-33497 Dutchcoders transfer.sh 路径遍历漏洞
CVE-2021-33496 Dutchcoders transfer.sh 跨站脚本漏洞
CVE-2021-21989 Vmware VMware Workstation 缓冲区错误漏洞
CVE-2020-28901 Nagios 命令注入漏洞
CVE-2020-28902 Nagios 命令注入漏洞
CVE-2020-28900 Nagios 数据伪造问题漏洞
CVE-2020-28904 Nagios 安全漏洞
CVE-2020-28905 Nagios 代码注入漏洞
CVE-2020-28906 Nagios 权限许可和访问控制问题漏洞
CVE-2020-28907 Nagios 信任管理问题漏洞
CVE-2020-28908 Nagios 命令注入漏洞
CVE-2020-28909 Nagios 安全漏洞
CVE-2020-28910 Nagios XI 安全漏洞
CVE-2020-28911 Nagios 安全漏洞

Showing top 20 of 47 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: libvirt
Same vendor: n/a
Same weakness: CWE-119

V. Comments for CVE-2021-3559

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