CVE-2016-5420
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.1 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
76.4%
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.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| debian:debian_linux | debian debian linux | eq | 8.0 |
References
lists.opensuse.org/opensuse-updates/2016-09/msg00011.html
lists.opensuse.org/opensuse-updates/2016-09/msg00094.html
rhn.redhat.com/errata/RHSA-2016-2575.html
rhn.redhat.com/errata/RHSA-2016-2957.html
www.debian.org/security/2016/dsa-3638
www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
www.securityfocus.com/bid/92309
www.securitytracker.com/id/1036537
www.securitytracker.com/id/1036739
www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059
www.ubuntu.com/usn/USN-3048-1
access.redhat.com/errata/RHSA-2018:3558
curl.haxx.se/docs/adv_20160803B.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/
security.gentoo.org/glsa/201701-47
source.android.com/security/bulletin/2016-12-01.html
www.tenable.com/security/tns-2016-18
Social References
More
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.1 High
AI Score
Confidence
High
0.005 Low
EPSS
Percentile
76.4%