CVE-2016-5420

7.5 HIGH
Published: August 10, 2016 Modified: May 06, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
Source: secalert@redhat.com
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2575.html
Source: secalert@redhat.com
http://rhn.redhat.com/errata/RHSA-2016-2957.html
Source: secalert@redhat.com
http://www.debian.org/security/2016/dsa-3638
Source: secalert@redhat.com
Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Source: secalert@redhat.com
http://www.securityfocus.com/bid/92309
Source: secalert@redhat.com
http://www.securitytracker.com/id/1036537
Source: secalert@redhat.com
http://www.securitytracker.com/id/1036739
Source: secalert@redhat.com
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059
Source: secalert@redhat.com
http://www.ubuntu.com/usn/USN-3048-1
Source: secalert@redhat.com
https://access.redhat.com/errata/RHSA-2018:3558
Source: secalert@redhat.com
https://curl.haxx.se/docs/adv_20160803B.html
Source: secalert@redhat.com
Mitigation Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
Source: secalert@redhat.com
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
Source: secalert@redhat.com
https://security.gentoo.org/glsa/201701-47
Source: secalert@redhat.com
https://source.android.com/security/bulletin/2016-12-01.html
Source: secalert@redhat.com
https://www.tenable.com/security/tns-2016-18
Source: secalert@redhat.com
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2575.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://rhn.redhat.com/errata/RHSA-2016-2957.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.debian.org/security/2016/dsa-3638
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/92309
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1036537
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1036739
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.ubuntu.com/usn/USN-3048-1
Source: af854a3a-2127-422b-91ae-364da2661108
https://access.redhat.com/errata/RHSA-2018:3558
Source: af854a3a-2127-422b-91ae-364da2661108
https://curl.haxx.se/docs/adv_20160803B.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Patch Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201701-47
Source: af854a3a-2127-422b-91ae-364da2661108
https://source.android.com/security/bulletin/2016-12-01.html
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.tenable.com/security/tns-2016-18
Source: af854a3a-2127-422b-91ae-364da2661108

36 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
14.6%
96th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-285

Affected Vendors

haxx debian opensuse

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