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CVE-2021-22898

Quick assessment

Affected
n/a https://github.com/curl/curl
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HAXX Haxx libcurl是瑞典HAXX公司的一个免费、开源的客户端URL传输库。该库支持FTP、FTPS、TFTP、HTTP等。 HAXX libcurl存在信息泄露漏洞，该漏洞源于libcurl可以将未初始化的数据从基于堆栈的缓冲区传递到服务器导致使用明文网络协议将敏感的内部信息泄露给服务。

AI Predicted 5.3 Difficulty: Easy EPSS 4.51% · P91

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System
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I. Basic Information for CVE-2021-22898

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
HAXX libcurl 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HAXX Haxx libcurl是瑞典HAXX公司的一个免费、开源的客户端URL传输库。该库支持FTP、FTPS、TFTP、HTTP等。 HAXX libcurl存在信息泄露漏洞，该漏洞源于libcurl可以将未初始化的数据从基于堆栈的缓冲区传递到服务器导致使用明文网络协议将敏感的内部信息泄露给服务。
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
- https://github.com/curl/curl 7.7 through 7.76.1 -

II. Public POCs for CVE-2021-22898

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III. Intelligence Information for CVE-2021-22898

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Patches & Fixes for CVE-2021-22898 (1)

Vendor Advisories for CVE-2021-22898 (5)

Mailing List Discussions for CVE-2021-22898 (6)

Other References for CVE-2021-22898 (2)

Same Patch Batch · n/a · 2021-06-11 · 79 CVEs total

CVE-2021-34679 10.0 CRITICAL Thycotic Password Reset Server 信息泄露漏洞
CVE-2021-21808 Accusoft ImageGear 缓冲区错误漏洞
CVE-2021-0472 Google Android 安全漏洞
CVE-2021-32930 Advantech Iview 访问控制错误漏洞
CVE-2021-32932 Advantech Iview SQL注入漏洞
CVE-2021-21795 Accusoft ImageGear 缓冲区错误漏洞
CVE-2021-21833 Accusoft ImageGear 输入验证错误漏洞
CVE-2021-20591 Mitsubishi Electric MELSEC iQ-R series 资源管理错误漏洞
CVE-2021-22906 Nextcloud 资源管理错误漏洞
CVE-2021-22915 Nextcloud server 处理逻辑错误漏洞
CVE-2021-21824 Accusoft ImageGear 缓冲区错误漏洞
CVE-2021-27408 Mmemed Welch Allyn Connex 缓冲区错误漏洞
CVE-2021-27410 Mmemed Welch Allyn Connex 缓冲区错误漏洞
CVE-2019-9475 Google Android 安全漏洞
CVE-2021-0466 Google Android 安全特征问题漏洞
CVE-2021-0476 Google Android 资源管理错误漏洞
CVE-2021-0481 Google Android 输入验证错误漏洞
CVE-2021-0482 Google Android 资源管理错误漏洞
CVE-2021-0484 Google Android 信息泄露漏洞
CVE-2021-22905 Nextcloud 信息泄露漏洞

Showing top 20 of 79 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: https://github.com/curl/curl
Same vendor: n/a
Same weakness: CWE-200

V. Comments for CVE-2021-22898

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