1. Ubuntu Security Notices
  2. USN-3048-1

USN-3048-1: curl vulnerabilities

Publication date

8 August 2016

Overview

Several security issues were fixed in curl.

Releases

Packages

  • curl - HTTP, HTTPS, and FTP client and client libraries

Details

Bru Rom discovered that curl incorrectly handled client certificates when
resuming a TLS session. (CVE-2016-5419)

It was discovered that curl incorrectly handled client certificates when
reusing TLS connections. (CVE-2016-5420)

Marcelo Echeverria and Fernando Muñoz discovered that curl incorrectly
reused a connection struct, contrary to expectations. This issue only
applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5421)

Bru Rom discovered that curl incorrectly handled client certificates when
resuming a TLS session. (CVE-2016-5419)

It was discovered that curl incorrectly handled client certificates when
reusing TLS connections. (CVE-2016-5420)

Marcelo Echeverria and Fernando Muñoz discovered that curl incorrectly
reused a connection struct, contrary to expectations. This issue only
applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5421)

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
16.04 xenial libcurl3 –  7.47.0-1ubuntu2.1
libcurl3-gnutls –  7.47.0-1ubuntu2.1
libcurl3-nss –  7.47.0-1ubuntu2.1
14.04 trusty libcurl3 –  7.35.0-1ubuntu2.8
libcurl3-gnutls –  7.35.0-1ubuntu2.8
libcurl3-nss –  7.35.0-1ubuntu2.8
12.04 precise libcurl3 –  7.22.0-3ubuntu4.16
libcurl3-gnutls –  7.22.0-3ubuntu4.16
libcurl3-nss –  7.22.0-3ubuntu4.16

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References

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