CVE-2016-5420

2016-08-0300:00:00

ubuntu.com

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

5 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.005 Low

EPSS

Percentile

76.0%

JSON

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.

Notes

Author	Note
seth-arnold	when built against NSS another patch is needed, see http://www.openwall.com/lists/oss-security/2016/09/05/1 for information http://www.openwall.com/lists/oss-security/2016/09/05/7

OSVersionArchitecturePackageVersionFilename
ubuntu12.04noarchcurl< 7.22.0-3ubuntu4.16UNKNOWN
ubuntu14.04noarchcurl< 7.35.0-1ubuntu2.8UNKNOWN
ubuntu16.04noarchcurl< 7.47.0-1ubuntu2.1UNKNOWN