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CVE-2020-25656

Quick assessment

Affected
n/a kernel
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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在资源管理错误漏洞，该漏洞源于vt_do_kdgkb_ioctl()。攻击者可利用该漏洞强制使用释放的内存区域，以触发拒绝服务，并可能运行代码。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.44% · P36
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I. Basic Information for CVE-2020-25656

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
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
Linux kernel资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在资源管理错误漏洞，该漏洞源于vt_do_kdgkb_ioctl()。攻击者可利用该漏洞强制使用释放的内存区域，以触发拒绝服务，并可能运行代码。
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
- kernel kernel 5.10-rc2 -

II. Public POCs for CVE-2020-25656

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III. Intelligence Information for CVE-2020-25656

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Vendor Advisories for CVE-2020-25656 (1)

Mailing List Discussions for CVE-2020-25656 (2)

Other References for CVE-2020-25656 (3)

Same Patch Batch · n/a · 2020-12-02 · 39 CVEs total

CVE-2020-14260 HCL Domino 输入验证错误漏洞
CVE-2020-13956 Apache HttpClient 安全漏洞
CVE-2020-25638 Red Hat Hibernate ORM SQL注入漏洞
CVE-2020-28273 Ahdinosaur Set-in 安全漏洞
CVE-2020-28272 keyget 安全漏洞
CVE-2020-14369 Red Hat CloudForms 跨站请求伪造漏洞
CVE-2020-29458 Textpattern Cms 跨站请求伪造漏洞
CVE-2020-29456 Papermerge 跨站脚本漏洞
CVE-2020-29454 Umbraco 安全漏洞
CVE-2020-6018 Valvesoftware GameNetworkingSockets 缓冲区错误漏洞
CVE-2020-29239 Online Birth Certificate System 跨站脚本漏洞
CVE-2020-4102 HCL Notes 安全漏洞
CVE-2020-27816 Red Hat OpenShift Elasticsearch-operator 输入验证错误漏洞
CVE-2020-25723 QEMU 代码问题漏洞
CVE-2020-14305 Linux kernel 缓冲区错误漏洞
CVE-2020-7199 HPE Edgeline Infrastructure Management 授权问题漏洞
CVE-2020-14383 Samba 安全漏洞
CVE-2020-25704 Linux kernel 资源管理错误漏洞
CVE-2020-27813 Gorilla Websocket 资源管理错误漏洞
CVE-2020-13496 Pixar OpenUSD 缓冲区错误漏洞

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2020-25656

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