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CVE-2021-20266

Quick assessment

Affected
n/a rpm
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.

Red Hat Package Manager是美国Red Hat公司的一种用于互联网下载包的打包及安装工具。它包含在某些Linux分发版中。它生成具有.RPM扩展名的文件。与Dpkg类似。 Red Hat Package Manager存在缓冲区错误漏洞，该漏洞允许可以修改rpmdb的攻击者导致越界读取。

AI Predicted 4.3 Difficulty: Hard EPSS 1.71% · P76

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2021-20266

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Package Manager 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Package Manager是美国Red Hat公司的一种用于互联网下载包的打包及安装工具。它包含在某些Linux分发版中。它生成具有.RPM扩展名的文件。与Dpkg类似。 Red Hat Package Manager存在缓冲区错误漏洞，该漏洞允许可以修改rpmdb的攻击者导致越界读取。
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
- rpm rpm 4.17.0 -

II. Public POCs for CVE-2021-20266

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III. Intelligence Information for CVE-2021-20266

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Vendor Advisories for CVE-2021-20266 (2)

Mailing List Discussions for CVE-2021-20266 (2)

Same Patch Batch · n/a · 2021-04-30 · 22 CVEs total

CVE-2020-7731 7.5 HIGH Denial of Service (DoS)
CVE-2021-31933 7.2 HIGH Chamilo 输入验证错误漏洞
CVE-2021-31232 cortex 输入验证错误漏洞
CVE-2021-31873 klibc 输入验证错误漏洞
CVE-2021-31919 Rust rkyv crate 安全漏洞
CVE-2021-31871 klibc 输入验证错误漏洞
CVE-2021-31872 klibc 输入验证错误漏洞
CVE-2021-31870 klibc 输入验证错误漏洞
CVE-2021-26807 Boost Connect community Galaxy Client 代码问题漏洞
CVE-2020-1721 pki-core 跨站脚本漏洞
CVE-2020-24918 Ambarella Oryx RTSP Server 缓冲区错误漏洞
CVE-2021-28959 Zoho ManageEngine Eventlog Analyzer 路径遍历漏洞
CVE-2021-31231 Grafana 输入验证错误漏洞
CVE-2021-31792 SuiteCRM 跨站脚本漏洞
CVE-2020-27519 pritunl 安全漏洞
CVE-2021-31926 CubeCoders AMP 安全漏洞
CVE-2020-18084 Yzmcms 跨站脚本漏洞
CVE-2020-28943 Open-xchange OX App Suite 代码问题漏洞
CVE-2020-28944 Open-Xchange OX App Suite 资源管理错误漏洞
CVE-2021-31935 Open-xchange OX App Suite 跨站脚本漏洞

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: rpm
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2021-20266

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