Use of Uninitialized Resource Affecting libcurl-devel package, versions <0:7.76.1-7.amzn2.0.2
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Test your applications- Snyk ID SNYK-AMZN2-LIBCURLDEVEL-1702829
- published 27 Sep 2021
- disclosed 5 Aug 2021
Introduced: 5 Aug 2021
CVE-2021-22925 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 libcurl-devel to version 0:7.76.1-7.amzn2.0.2 or higher.
This issue was patched in ALAS2-2021-1700.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
curl supports the -t command line option, known as CURLOPT_TELNETOPTIONSin 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.
References
- https://security.netapp.com/advisory/ntap-20210902-0003/
- https://support.apple.com/kb/HT212804
- https://support.apple.com/kb/HT212805
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22925
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
- http://seclists.org/fulldisclosure/2021/Sep/39
- http://seclists.org/fulldisclosure/2021/Sep/40
- https://hackerone.com/reports/1223882
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://security.gentoo.org/glsa/202212-01
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/