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CVE-2021-3975

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。 Red Hat libvirt 存在资源管理错误漏洞，该漏洞源于 VM 关闭期间的分段错误会导致 vdsm 挂起 [NEEDINFO]。

AI Predicted 5.3 Difficulty: Easy EPSS 1.53% · P72

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-3975

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat libvirt 资源管理错误漏洞
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。 Red Hat libvirt 存在资源管理错误漏洞，该漏洞源于 VM 关闭期间的分段错误会导致 vdsm 挂起 [NEEDINFO]。
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 Fixed in libvirt v7.1.0 -

II. Public POCs for CVE-2021-3975

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III. Intelligence Information for CVE-2021-3975

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Patches & Fixes for CVE-2021-3975 (1)

Vendor Advisories for CVE-2021-3975 (3)

Mailing List Discussions for CVE-2021-3975 (1)

Same Patch Batch · n/a · 2022-08-23 · 54 CVEs total

CVE-2022-24381 7.5 HIGH Denial of Service (DoS)
CVE-2022-25888 7.5 HIGH Denial of Service (DoS)
CVE-2022-25761 7.5 HIGH Denial of Service (DoS)
CVE-2022-24298 7.5 HIGH Denial of Service (DoS)
CVE-2022-21208 7.5 HIGH Denial of Service (DoS)
CVE-2022-25231 7.5 HIGH Denial of Service (DoS)
CVE-2022-25304 7.5 HIGH Denial of Service (DoS)
CVE-2022-25302 7.5 HIGH Denial of Service (DoS)
CVE-2022-37428 6.5 MEDIUM PowerDNS Recursor 安全漏洞
CVE-2021-3839 DPDK 缓冲区错误漏洞
CVE-2021-3690 Red Hat JBoss Enterprise Application Platform资源管理错误漏洞
CVE-2022-35115 IceWarp WebClient SQL注入漏洞
CVE-2020-35509 Red Hat Keycloak 信任管理问题漏洞
CVE-2021-3827 Red Hat Keycloak 授权问题漏洞
CVE-2021-3798 openCryptoki 安全漏洞
CVE-2022-37111 BlueCMS SQL注入漏洞
CVE-2022-37112 BlueCMS SQL注入漏洞
CVE-2022-37113 BlueCMS SQL注入漏洞
CVE-2022-37223 jfinal cms SQL注入漏洞
CVE-2022-37199 jfinal cms SQL注入漏洞

Showing top 20 of 54 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: libvirt
Same vendor: n/a
Same weakness: CWE-416

V. Comments for CVE-2021-3975

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