CVE-2016-8617

The base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at least 1Gb as input via `CURLOPT_USERNAME`.

• CWE-787
• CWE-787

• http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• http://www.securityfocus.com/bid/94097Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037192Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2018:2486Third Party Advisory
• https://access.redhat.com/errata/RHSA-2018:3558
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8617Issue Tracking, Patch, Third Party Advisory
• https://curl.haxx.se/CVE-2016-8617.patchPatch, Vendor Advisory
• https://curl.haxx.se/docs/adv_20161102C.htmlPatch, Vendor Advisory
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://security.gentoo.org/glsa/201701-47Third Party Advisory
• https://www.tenable.com/security/tns-2016-21Third Party Advisory
• http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
• http://www.securityfocus.com/bid/94097Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037192Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2018:2486Third Party Advisory
• https://access.redhat.com/errata/RHSA-2018:3558
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8617Issue Tracking, Patch, Third Party Advisory
• https://curl.haxx.se/CVE-2016-8617.patchPatch, Vendor Advisory
• https://curl.haxx.se/docs/adv_20161102C.htmlPatch, Vendor Advisory
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://security.gentoo.org/glsa/201701-47Third Party Advisory
• https://www.tenable.com/security/tns-2016-21Third Party Advisory

Published

Jul 31, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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