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CVE-2021-4028

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 5.15 rc1之前版本存在资源管理错误漏洞，该漏洞源于RDMA listen 函数的释放后使用错误。攻击者可利用该漏洞运行精心编制的程序来触发释放后使用错误，并以提升的权限执行任意代码。

AI Predicted 7.8 Difficulty: Hard EPSS 0.32% · P25
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I. Basic Information for CVE-2021-4028

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.
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 5.15 rc1之前版本存在资源管理错误漏洞，该漏洞源于RDMA listen 函数的释放后使用错误。攻击者可利用该漏洞运行精心编制的程序来触发释放后使用错误，并以提升的权限执行任意代码。
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 Fixed in kernel 5.15-rc1 -

II. Public POCs for CVE-2021-4028

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III. Intelligence Information for CVE-2021-4028

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Patches & Fixes for CVE-2021-4028 (1)

Vendor Advisories for CVE-2021-4028 (3)

Other References for CVE-2021-4028 (1)

Same Patch Batch · n/a · 2022-08-24 · 40 CVEs total

CVE-2022-25903 7.5 HIGH Denial of Service (DoS)
CVE-2022-24375 7.5 HIGH Denial of Service (DoS)
CVE-2021-4158 QEMU 代码问题漏洞
CVE-2022-20122 Google Android 资源管理错误漏洞
CVE-2021-4178 Kubernetes 代码问题漏洞
CVE-2021-4209 GnuTLS 代码问题漏洞
CVE-2021-4213 Linux jss 安全漏洞
CVE-2021-4218 Linux kernel 安全漏洞
CVE-2021-4217 Info-ZIP UnZip 代码问题漏洞
CVE-2021-4122 cryptsetup 数据伪造问题漏洞
CVE-2021-4125 Red Hat OpenShift 代码问题漏洞
CVE-2021-4142 Red Hat Satellite 授权问题漏洞
CVE-2021-4155 Red Hat Enterprise Linux 权限许可和访问控制问题漏洞
CVE-2021-0947 Google Android 缓冲区错误漏洞
CVE-2021-4159 Linux kernel 安全漏洞
CVE-2021-4041 Ansible-Runner 操作系统命令注入漏洞
CVE-2021-4040 Red Hat AMQ Broker 缓冲区错误漏洞
CVE-2022-37181 72crm 代码问题漏洞
CVE-2022-37178 72crm SQL注入漏洞
CVE-2018-14520 Kirby 跨站脚本漏洞

Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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