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CVE-2016-5420

Publication date 3 August 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
curl 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Fixed 7.47.0-1ubuntu2.1
14.04 LTS trusty
Fixed 7.35.0-1ubuntu2.8
12.04 LTS precise
Fixed 7.22.0-3ubuntu4.16

Notes

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N