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CVE-2020-15564

Quick assessment

Affected
n/a n/a
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.

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 4.13.x 版本及之前版本中存在缓冲区错误漏洞。攻击者可利用该漏洞导致虚拟机管理程序崩溃。

AI Predicted 7.5 Difficulty: Easy EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-15564

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Xen through 4.13.x, allowing Arm guest OS users to cause a hypervisor crash because of a missing alignment check in VCPUOP_register_vcpu_info. The hypercall VCPUOP_register_vcpu_info is used by a guest to register a shared region with the hypervisor. The region will be mapped into Xen address space so it can be directly accessed. On Arm, the region is accessed with instructions that require a specific alignment. Unfortunately, there is no check that the address provided by the guest will be correctly aligned. As a result, a malicious guest could cause a hypervisor crash by passing a misaligned address. A malicious guest administrator may cause a hypervisor crash, resulting in a Denial of Service (DoS). All Xen versions are vulnerable. Only Arm systems are vulnerable. x86 systems are not affected.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Xen 缓冲区错误漏洞
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 4.13.x 版本及之前版本中存在缓冲区错误漏洞。攻击者可利用该漏洞导致虚拟机管理程序崩溃。
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
- n/a n/a -

II. Public POCs for CVE-2020-15564

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III. Intelligence Information for CVE-2020-15564

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Vendor Advisories for CVE-2020-15564 (2)

Mailing List Discussions for CVE-2020-15564 (3)

Other References for CVE-2020-15564 (1)

Same Patch Batch · n/a · 2020-07-07 · 52 CVEs total

CVE-2020-15580 Samsung移动设备安全漏洞
CVE-2020-15507 MobileIron Core 信息泄露漏洞
CVE-2020-15506 MobileIron Core 授权问题漏洞
CVE-2020-15567 Xen 竞争条件问题漏洞
CVE-2020-15566 Xen 代码问题漏洞
CVE-2020-15563 Xen 缓冲区错误漏洞
CVE-2020-15565 Xen 资源管理错误漏洞
CVE-2020-15505 多款MobileIron产品安全漏洞
CVE-2020-15582 Samsung移动设备缓冲区错误漏洞
CVE-2020-15581 Samsung Mobile Device 信息泄露漏洞
CVE-2020-15583 Samsung移动设备路径遍历漏洞
CVE-2020-15579 Samsung移动设备安全漏洞
CVE-2020-15578 Samsung移动设备安全漏洞
CVE-2020-10745 Samba 资源管理错误漏洞
CVE-2020-15577 Samsung移动设备安全漏洞
CVE-2020-10730 Samba 资源管理错误漏洞
CVE-2020-15517 TYPO3 ke_search extension 跨站脚本漏洞
CVE-2020-15516 TYPO3 mm_forum extension 跨站请求伪造漏洞
CVE-2020-15514 TYPO3 jh_captcha extension 跨站脚本漏洞
CVE-2020-15513 TYPO3 typo3_forum extension 安全漏洞

Showing top 20 of 52 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

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