CVE-2021-20266
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I. Basic Information for CVE-2021-20266
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
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
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://bugzilla.redhat.com/show_bug.cgi?id=1927741x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-20266
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 vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
Same weakness: CWE-125
- CVE-2026-8177
XML::LibXML versions through 2.0210 for Perl read out-of-bou - CVE-2026-6104
Global buffer over-read in mb_convert_encoding() with attack - CVE-2026-7258
Out-of-bounds read in urldecode() on NetBSD - CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out- - CVE-2026-3508
ASUS System Control Interface 缓冲区错误漏洞
V. Comments for CVE-2021-20266
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