Vulnerability Description
curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 8.0 |
| Haxx | Libcurl | <= 7.50.0 |
| Opensuse | Leap | 42.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.htmlThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2575.html
- http://rhn.redhat.com/errata/RHSA-2016-2957.html
- http://www.debian.org/security/2016/dsa-3638Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/92309
- http://www.securitytracker.com/id/1036537
- http://www.securitytracker.com/id/1036739
- http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slack
- http://www.ubuntu.com/usn/USN-3048-1
- https://access.redhat.com/errata/RHSA-2018:3558
- https://curl.haxx.se/docs/adv_20160803B.htmlMitigationPatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2016-5420?
CVE-2016-5420 is a vulnerability with a CVSS score of 7.5 (HIGH). curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by lever...
How severe is CVE-2016-5420?
CVE-2016-5420 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-5420?
Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Haxx Libcurl, Opensuse Leap.