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CVE-2021-3612

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 存在缓冲区错误漏洞，该漏洞源于在Linux内核的操纵杆设备子系统中发现了一个越位内存读写缺陷，通过用户调用ioctl JSIOCSBTNMAP的方式。攻击者可利用该漏洞使系统崩溃，或者可能升级他们在系统上的特权。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.69% · P51

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-3612

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds memory write flaw was found in the Linux kernel's joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allows a local user to crash the system or possibly escalate their privileges on the system. 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
输入验证不恰当
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基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在缓冲区错误漏洞，该漏洞源于在Linux内核的操纵杆设备子系统中发现了一个越位内存读写缺陷，通过用户调用ioctl JSIOCSBTNMAP的方式。攻击者可利用该漏洞使系统崩溃，或者可能升级他们在系统上的特权。
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 5.9-rc1 -

II. Public POCs for CVE-2021-3612

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III. Intelligence Information for CVE-2021-3612

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Vendor Advisories for CVE-2021-3612 (3)

Mailing List Discussions for CVE-2021-3612 (3)

Other References for CVE-2021-3612 (1)

Same Patch Batch · n/a · 2021-07-09 · 48 CVEs total

CVE-2021-30116 10.0 CRITICAL Unauthenticated credential leak and business logic flaw in Kaseya VSA <= v9.5.6
CVE-2021-30120 9.9 CRITICAL 2FA bypass in Kaseya VSA <= v9.5.6
CVE-2021-30118 9.8 CRITICAL Unauthenticated Remote Code Execution in Kaseya VSA < v9.5.5
CVE-2021-30117 9.8 CRITICAL Authenticated SQL injection in Kaseya VSA < v9.5.6
CVE-2021-23405 8.3 HIGH SQL Injection
CVE-2021-30201 7.5 HIGH Unauthenticated XML External Entity vulnerability in Kaseya VSA < v9.5.6
CVE-2021-30121 6.5 MEDIUM (Semi-)Authenticated local file inclusion in Kaseya VSA < v9.5.6
CVE-2021-30119 5.4 MEDIUM Authenticated Authenticated reflective XSS in Kaseya VSA <= v9.5.6
CVE-2020-35986 Rukovoditel 跨站脚本漏洞
CVE-2020-25875 Codoforum 跨站脚本漏洞
CVE-2020-25392 CSZ CMS 跨站脚本漏洞
CVE-2021-33795 Foxit Reader和Foxit PhantomPDF 安全漏洞
CVE-2020-35987 Rukovoditel 跨站脚本漏洞
CVE-2021-35358 Dotcms dotCMS 跨站脚本漏洞
CVE-2021-35361 Dotcms dotCMS 跨站脚本漏洞
CVE-2021-35360 Dotcms dotCMS 跨站脚本漏洞
CVE-2021-36371 Emissary-Ingress 信任管理问题漏洞
CVE-2021-33214 Hms Networks eCatcher 安全漏洞
CVE-2021-33792 Foxit Reader 和 Foxit PhantomPDF 缓冲区错误漏洞
CVE-2021-27038 Autodesk Design Review 安全漏洞

Showing top 20 of 48 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: kernel
Same vendor: n/a
Same weakness: CWE-20

V. Comments for CVE-2021-3612

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