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CVE-2020-14331

Quick assessment

Affected
n/a Linux 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基金会发布的开源操作系统Linux所使用的内核。 Linux kernel中的vgacon_scrollback_update()存在缓冲区错误漏洞。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 0.56% · P45

Possible ATT&CK Techniques 1 AI

T1055.008 · Ptrace System Calls
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I. Basic Information for CVE-2020-14331

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 the invert video code on VGA consoles when a local attacker attempts to resize the console, calling an ioctl VT_RESIZE, which causes an out-of-bounds write to occur. This flaw allows a local user with access to the VGA console to crash the system, potentially escalating their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel中的vgacon_scrollback_update()存在缓冲区错误漏洞。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
- Linux Kernel All versions of the Linux kernel -

II. Public POCs for CVE-2020-14331

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III. Intelligence Information for CVE-2020-14331

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Vendor Advisories for CVE-2020-14331 (1)

Mailing List Discussions for CVE-2020-14331 (4)

Same Patch Batch · n/a · 2020-09-15 · 15 CVEs total

CVE-2020-25453 Blackcat Cms 跨站请求伪造漏洞
CVE-2020-23833 Projectworlds House Rental SQL注入漏洞
CVE-2020-23828 Sourcecodester Online Grading System 代码问题漏洞
CVE-2020-11977 Apache Syncope 安全漏洞
CVE-2020-10759 fwupd 数据伪造问题漏洞
CVE-2020-25071 Facebook Nifty 跨站脚本漏洞
CVE-2020-14345 xorg-x11-server 缓冲区错误漏洞
CVE-2020-23512 VR CAM Model P1 授权问题漏洞
CVE-2020-23451 Spiceworks跨站请求伪造漏洞
CVE-2020-24925 ElkarBackup 加密问题漏洞
CVE-2020-24924 ElkarBackup 跨站脚本漏洞
CVE-2020-14346 xorg-x11-server 数字错误漏洞
CVE-2020-14361 xorg-x11-server 数字错误漏洞
CVE-2020-14362 xorg-x11-server 数字错误漏洞

IV. Related Vulnerabilities

Same product: Linux Kernel
Same vendor: n/a
Same weakness: CWE-787

V. Comments for CVE-2020-14331

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