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CVE-2016-8616 Details

Description

A flaw was found in curl before version 7.51.0 When re-using a connection, curl was doing case insensitive comparisons of user name and password with the existing connections. This means that if an unused connection with proper credentials exists for a protocol that has connection-scoped credentials, an attacker can cause that connection to be reused if s/he knows the case-insensitive version of the correct password.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.9 MEDIUMVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2018:2486	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3558	CVE	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616	CVE	Issue TrackingPatchVendor Advisory
https://curl.haxx.se/CVE-2016-8616.patch	CVE	PatchVendor Advisory
https://curl.haxx.se/docs/adv_20161102B.html	CVE	PatchVendor Advisory
https://security.gentoo.org/glsa/201701-47	CVE	Third Party Advisory
https://www.tenable.com/security/tns-2016-21	CVE	Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	CVE	Patch
http://www.securityfocus.com/bid/94094	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037192	CVE	Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2018:2486	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3558	[email protected]	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616	[email protected]	Issue TrackingPatchVendor Advisory
https://curl.haxx.se/CVE-2016-8616.patch	[email protected]	PatchVendor Advisory
https://curl.haxx.se/docs/adv_20161102B.html	[email protected]	PatchVendor Advisory
https://security.gentoo.org/glsa/201701-47	[email protected]	Third Party Advisory
https://www.tenable.com/security/tns-2016-21	[email protected]	Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	[email protected]	Patch
http://www.securityfocus.com/bid/94094	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037192	[email protected]	Third Party AdvisoryVDB Entry

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-255	Credentials Management Errors	[email protected]
CWE-592	DEPRECATED: Authentication Bypass Issues	[email protected]

Affected Products

Product	Versions
haxx curl	< 7.51.0
CPE cpe:2.3:a:haxx:curl:::::::: Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Mar 11, 2020	CVE Modified	[email protected]
Oct 9, 2019	CVE Modified	[email protected]
Apr 25, 2019	Modified Analysis	[email protected]
Nov 13, 2018	CVE Modified	[email protected]
Oct 17, 2018	CVE Modified	[email protected]
Oct 9, 2018	Initial Analysis	[email protected]
Aug 17, 2018	CVE Modified	[email protected]
Aug 2, 2018	CVE Modified	[email protected]