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CVE-2021-20268

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 存在安全漏洞，该漏洞允许本地用户崩溃系统或提升他们的用户权限。

AI Predicted 7.8 Difficulty: Easy EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-20268

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. 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 输入验证错误漏洞
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 存在安全漏洞，该漏洞允许本地用户崩溃系统或提升他们的用户权限。
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 5.10.10 -

II. Public POCs for CVE-2021-20268

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III. Intelligence Information for CVE-2021-20268

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Vendor Advisories for CVE-2021-20268 (2)

Other References for CVE-2021-20268 (1)

Same Patch Batch · n/a · 2021-03-09 · 29 CVEs total

CVE-2021-23352 8.6 HIGH Command Injection
CVE-2021-23353 5.9 MEDIUM Regular Expression Denial of Service (ReDoS)
CVE-2021-28116 3.7 LOW Squid 缓冲区错误漏洞
CVE-2021-20246 ImageMagick Studio ImageMagick 数字错误漏洞
CVE-2021-28119 Xander Frangos twinkle-tray 安全漏洞
CVE-2021-20245 ImageMagick Studio ImageMagick 数字错误漏洞
CVE-2021-20244 ImageMagick Studio ImageMagick 数字错误漏洞
CVE-2021-20243 ImageMagick Studio ImageMagick 数字错误漏洞
CVE-2021-20241 ImageMagick Studio ImageMagick 数字错误漏洞
CVE-2021-28006 Sourcecodester Web Based Quiz System 跨站脚本漏洞
CVE-2021-20272 Privoxy 安全漏洞
CVE-2021-20273 Privoxy 输入验证错误漏洞
CVE-2021-20274 Privoxy 代码问题漏洞
CVE-2021-20275 Privoxy 缓冲区错误漏洞
CVE-2021-20276 Privoxy 缓冲区错误漏洞
CVE-2021-25915 Eugene Ware changeset 安全漏洞
CVE-2021-20253 Red Hat ansible-tower 安全漏洞
CVE-2021-20263 QEMU 安全漏洞
CVE-2021-20262 Red Hat Keycloak 访问控制错误漏洞
CVE-2020-28150 I-Net Software Clear Reports 输入验证错误漏洞

Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-20268

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