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CVE-2021-22925 Detail

Description

curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.3 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://seclists.org/fulldisclosure/2021/Sep/39 Mailing List  Third Party Advisory 
http://seclists.org/fulldisclosure/2021/Sep/40 Mailing List  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf Patch  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf Third Party Advisory 
https://hackerone.com/reports/1223882 Exploit  Issue Tracking  Patch  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/ Mailing List  Third Party Advisory 
https://security.gentoo.org/glsa/202212-01 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20210902-0003/ Third Party Advisory 
https://support.apple.com/kb/HT212804 Third Party Advisory 
https://support.apple.com/kb/HT212805 Third Party Advisory 
https://www.oracle.com/security-alerts/cpujan2022.html Patch  Third Party Advisory 
https://www.oracle.com/security-alerts/cpuoct2021.html Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-908 Use of Uninitialized Resource cwe source acceptance level NIST  
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor Reference acceptance level HackerOne  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

17 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-22925
NVD Published Date:
08/05/2021
NVD Last Modified:
03/27/2024
Source:
HackerOne