CVE-2021-26933
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I. Basic Information for CVE-2021-26933
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in Xen 4.9 through 4.14.x. On Arm, a guest is allowed to control whether memory accesses are bypassing the cache. This means that Xen needs to ensure that all writes (such as the ones during scrubbing) have reached the memory before handing over the page to a guest. Unfortunately, the operation to clean the cache is happening before checking if the page was scrubbed. Therefore there is no guarantee when all the writes will reach the memory.
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 4.9 through 4.14.x 存在安全漏洞，该漏洞允许客户端控制内存访问绕过缓存。
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-2021-26933
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- http://xenbits.xen.org/xsa/advisory-364.htmlx_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4GELN5E6MDR5KQBJF5M5COUUED3YFZTD/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOAJBVAVR6RSCUCHNXPVSNRPSFM7INMP/vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2021-26933
Same Patch Batch · n/a · 2021-02-17 · 87 CVEs total
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| CVE-2021-27138 | 7.8 HIGH | Das U-Boot 安全漏洞 |
| CVE-2021-27097 | 7.8 HIGH | Das U-Boot 安全漏洞 |
| CVE-2021-23339 | 5.0 MEDIUM | HTTP Request Smuggling |
| CVE-2020-12361 | Intel Graphics Drivers 资源管理错误漏洞 | |
| CVE-2020-0521 | Intel Graphics Drivers 安全漏洞 | |
| CVE-2020-0518 | Intel Graphics Drivers 安全漏洞 | |
| CVE-2020-12367 | Intel Graphics Drivers 输入验证错误漏洞 | |
| CVE-2020-12368 | Intel Graphics Drivers 输入验证错误漏洞 | |
| CVE-2020-12369 | Intel Graphics Drivers 缓冲区错误漏洞 | |
| CVE-2020-8678 | Intel Graphics Drivers 安全漏洞 | |
| CVE-2020-24452 | SGX Platform Software 输入验证错误漏洞 | |
| CVE-2020-24453 | Intel EPID SDK 输入验证错误漏洞 | |
| CVE-2020-24458 | Intel PROSet Wireless 信息泄露漏洞 | |
| CVE-2020-24480 | Intel XTU 安全漏洞 | |
| CVE-2020-24481 | Intel Quartus Prime Pro安全漏洞 | |
| CVE-2020-24482 | Intel 7360 Cell Modem 缓冲区错误漏洞 | |
| CVE-2020-24491 | Intel 10th Generation Intel Core Processor 信息泄露漏洞 | |
| CVE-2020-24500 | Intel Ethernet Controllers 缓冲区错误漏洞 | |
| CVE-2020-24505 | Intel Ethernet Controllers 输入验证错误漏洞 |
Showing top 20 of 87 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-26933
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