cnvd-2021-46874
Vulnerability from cnvd
Title: Red Hat libvirt拒绝服务漏洞(CNVD-2021-46874)
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 7.0.0之前版本的virConnectListAllNodeDevices API存在拒绝服务漏洞。攻击者利用该漏洞可通过执行“nodedev-list”virsh命令使libvirt daemon进程崩溃。
Severity: 中
Patch Name: Red Hat libvirt拒绝服务漏洞(CNVD-2021-46874)的补丁
Patch 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 7.0.0之前版本的virConnectListAllNodeDevices API存在拒绝服务漏洞。攻击者利用该漏洞可通过执行“nodedev-list”virsh命令使libvirt daemon进程崩溃。目前,供应商发布了安全公告及相关补丁信息,修复了此漏洞。
Formal description:
目前厂商已经发布了升级补丁以修复这个安全问题,请到厂商的主页下载: https://bugzilla.redhat.com/show_bug.cgi?id=1962306
Reference: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3559
Name | Red Hat libvirt >=6.10.0,<7.0.0 |
---|
{ "cves": { "cve": { "cveNumber": "CVE-2021-3559", "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-3559" } }, "description": "Red Hat libvirt\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8e\u5b9e\u73b0Linux\u865a\u62df\u5316\u529f\u80fd\u7684Linux API\uff0c\u5b83\u652f\u6301\u5404\u79cdHypervisor\uff0c\u5305\u62ecXen\u548cKVM\uff0c\u4ee5\u53caQEMU\u548c\u7528\u4e8e\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u4e9b\u865a\u62df\u4ea7\u54c1\u3002\n\nRed Hat libvirt 7.0.0\u4e4b\u524d\u7248\u672c\u7684virConnectListAllNodeDevices API\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u901a\u8fc7\u6267\u884c\u201cnodedev-list\u201dvirsh\u547d\u4ee4\u4f7flibvirt daemon\u8fdb\u7a0b\u5d29\u6e83\u3002", "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://bugzilla.redhat.com/show_bug.cgi?id=1962306", "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e", "number": "CNVD-2021-46874", "openTime": "2021-07-03", "patchDescription": "Red Hat libvirt\u662f\u7f8e\u56fd\u7ea2\u5e3d\uff08Red Hat\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u7528\u4e8e\u5b9e\u73b0Linux\u865a\u62df\u5316\u529f\u80fd\u7684Linux API\uff0c\u5b83\u652f\u6301\u5404\u79cdHypervisor\uff0c\u5305\u62ecXen\u548cKVM\uff0c\u4ee5\u53caQEMU\u548c\u7528\u4e8e\u5176\u4ed6\u64cd\u4f5c\u7cfb\u7edf\u7684\u4e00\u4e9b\u865a\u62df\u4ea7\u54c1\u3002\r\n\r\nRed Hat libvirt 7.0.0\u4e4b\u524d\u7248\u672c\u7684virConnectListAllNodeDevices API\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u901a\u8fc7\u6267\u884c\u201cnodedev-list\u201dvirsh\u547d\u4ee4\u4f7flibvirt daemon\u8fdb\u7a0b\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002", "patchName": "Red Hat libvirt\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-46874\uff09\u7684\u8865\u4e01", "products": { "product": "Red Hat libvirt \u003e=6.10.0\uff0c\u003c7.0.0" }, "referenceLink": "http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3559", "serverity": "\u4e2d", "submitTime": "2021-07-01", "title": "Red Hat libvirt\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-46874\uff09" }
Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.