Improper Certificate Validation Affecting libcurl package, versions <0:7.29.0-35.el7
Threat Intelligence
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk ID SNYK-RHEL7-LIBCURL-4625921
- published 26 Jul 2021
- disclosed 3 Aug 2016
Introduced: 3 Aug 2016
CVE-2016-5420 Open this link in a new tabHow to fix?
Upgrade RHEL:7 libcurl to version 0:7.29.0-35.el7 or higher.
This issue was patched in RHSA-2016:2575.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libcurl package and not the libcurl package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- http://www.securityfocus.com/bid/92309
- https://source.android.com/security/bulletin/2016-12-01.html
- https://www.tenable.com/security/tns-2016-18
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://access.redhat.com/security/cve/CVE-2016-5420
- http://www.debian.org/security/2016/dsa-3638
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
- https://security.gentoo.org/glsa/201701-47
- https://curl.haxx.se/docs/adv_20160803B.html
- http://rhn.redhat.com/errata/RHSA-2016-2575.html
- http://rhn.redhat.com/errata/RHSA-2016-2957.html
- https://access.redhat.com/errata/RHSA-2016:2575
- 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=slackware-security.563059
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
- http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
- http://www.ubuntu.com/usn/USN-3048-1
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/