cURL and libcurl 7.40.0 through 7.42.1 send the HTTP Basic authentication credentials for a previous connection when reusing a reset (curl_easy_reset) connection handle to send a request to the same host name, which allows remote attackers to obtain sensitive information via unspecified vectors.

References

• https://nvd.nist.gov/vuln/detail/CVE-2015-3236
• https://kc.mcafee.com/corporate/index?page=content&id=SB10131
• https://security.gentoo.org/glsa/201509-02
• http://curl.haxx.se/docs/adv_20150617A.html
• http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160660.html
• http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
• http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
• http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
• http://www.securityfocus.com/bid/75385
• http://www.securityfocus.com/bid/91787