CVE-2021-3308
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I. Basic Information for CVE-2021-3308
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors used by the MSI(-X) entries that the guest might had enabled, and hence will lead to vector exhaustion on the system, not allowing further PCI pass through devices to work properly. HVM guests with PCI pass through devices can mount a Denial of Service (DoS) attack affecting the pass through of PCI devices to other guests or the hardware domain. In the latter case, this would affect the entire host.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Xen 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xen是英国剑桥（Cambridge）大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x存在安全漏洞，该漏洞允许HVM客户机拒绝服务(DoS)攻击。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2021-3308
| # | POC Description | Source Link | Shenlong Link |
|---|
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- http://xenbits.xen.org/xsa/advisory-360.htmlx_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S5C42TMQYB6SDVT2MPFEWY65A6RSUVBN/vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2021-3308
Same Patch Batch · n/a · 2021-01-26 · 42 CVEs total
| CVE-2020-27295 | Honeywell OPC UA Tunneller 资源管理错误漏洞 | |
| CVE-2020-8293 | Nextcloud 资源管理错误漏洞 | |
| CVE-2020-8295 | Nextcloud 资源管理错误漏洞 | |
| CVE-2020-23447 | newbee-mall 跨站脚本漏洞 | |
| CVE-2020-23448 | newbee-mall 授权问题漏洞 | |
| CVE-2020-23449 | newbee-mall 访问控制错误漏洞 | |
| CVE-2020-35263 | Egavilanmedia User Registration & Login System SQL注入漏洞 | |
| CVE-2020-13582 | Micrium uC-HTTP 代码问题漏洞 | |
| CVE-2020-27274 | Honeywell OPC UA Tunneller 代码问题漏洞 | |
| CVE-2020-27299 | Honeywell OPC UA Tunneller 缓冲区错误漏洞 | |
| CVE-2020-27297 | Honeywell OPC UA Tunneller 缓冲区错误漏洞 | |
| CVE-2020-9492 | Apache Hadoop 安全漏洞 | |
| CVE-2021-22159 | Proofpoint Insider Threat Management Server 安全漏洞 | |
| CVE-2021-3309 | Wekan 信任管理问题漏洞 | |
| CVE-2021-26271 | CKEditor 安全漏洞 | |
| CVE-2021-26272 | CKEditor 安全漏洞 | |
| CVE-2020-23774 | 苏州华兆科技 Winmail 跨站脚本漏洞 | |
| CVE-2020-23776 | 苏州华兆科技 Winmail 代码问题漏洞 | |
| CVE-2021-3317 | KLog 命令注入漏洞 | |
| CVE-2021-3165 | SmartAgent 安全漏洞 |
Showing top 20 of 42 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
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bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
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