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CVE-2020-27786

Quick assessment

Affected
n/a kernel
Exploitation
Public or AI PoC available; prioritize validation
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，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 7.8 Difficulty: Moderate EPSS 1.67% · P76

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2020-27786

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’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
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，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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 5.7-rc6 -

II. Public POCs for CVE-2020-27786

# POC Description Source Link Shenlong Link
1 4.9 Kernel Exploit for CVE-2020-27786 https://github.com/kiks7/CVE-2020-27786-Kernel-Exploit POC Details
2 None https://github.com/elbiazo/CVE-2020-27786 POC Details
3 None https://github.com/Trinadh465/linux-4.19.72_CVE-2020-27786 POC Details
4 None https://github.com/ii4gsp/CVE-2020-27786 POC Details
5 None https://github.com/enlist12/CVE-2020-27786 POC Details
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III. Intelligence Information for CVE-2020-27786

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Patches & Fixes for CVE-2020-27786 (1)

Vendor Advisories for CVE-2020-27786 (1)

Mailing List Discussions for CVE-2020-27786 (1)

Same Patch Batch · n/a · 2020-12-11 · 94 CVEs total

CVE-2020-28439 9.8 CRITICAL Command Injection
CVE-2020-28440 9.8 CRITICAL Command Injection
CVE-2020-7791 7.5 HIGH Denial of Service (DoS)
CVE-2020-7792 7.5 HIGH Prototype Pollution
CVE-2020-7793 7.5 HIGH Regular Expression Denial of Service (ReDoS)
CVE-2020-7788 7.3 HIGH Prototype Pollution
CVE-2020-7789 5.6 MEDIUM Command Injection
CVE-2020-7790 5.3 MEDIUM Arbitrary File Read
CVE-2020-19165 PHPSHE SQL注入漏洞
CVE-2020-13987 Contiki OS 缓冲区错误漏洞
CVE-2020-15375 Brocade Fabric OS 输入验证错误漏洞
CVE-2020-29455 SmartyStreets liveAddressPlugin.js 跨站脚本漏洞
CVE-2020-15376 Brocade Fabric OS 安全漏洞
CVE-2020-27730 F5 NGINX Controller 路径遍历漏洞
CVE-2020-35175 Frappe Framework 安全漏洞
CVE-2020-17437 Multiple Embedded TCP/IP 缓冲区错误漏洞
CVE-2020-17438 Contiki 缓冲区错误漏洞
CVE-2020-17439 Contiki 输入验证错误漏洞
CVE-2020-17440 Contiki 安全漏洞
CVE-2020-17441 picoTCP 缓冲区错误漏洞

Showing top 20 of 94 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2020-27786

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