SB2018080122 - Credentials management in curl.haxx.se cURL
Published: August 1, 2018 Updated: August 3, 2020
Security Bulletin ID
SB2018080122
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Credentials management (CVE-ID: CVE-2016-8616)
The vulnerability allows a remote non-authenticated attacker to manipulate data.
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.
Remediation
Install update from vendor's website.
References
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/94094
- http://www.securitytracker.com/id/1037192
- https://access.redhat.com/errata/RHSA-2018:2486
- https://access.redhat.com/errata/RHSA-2018:3558
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8616
- https://curl.haxx.se/CVE-2016-8616.patch
- https://curl.haxx.se/docs/adv_20161102B.html
- https://security.gentoo.org/glsa/201701-47
- https://www.tenable.com/security/tns-2016-21