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Ubuntu Security Notice USN-2167-1

Ubuntu Security Notice USN-2167-1
Posted Apr 14, 2014
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2167-1 - Steve Holme discovered that libcurl incorrectly reused wrong connections when using protocols other than HTTP and FTP. This could lead to the use of unintended credentials, possibly exposing sensitive information. Richard Moore discovered that libcurl incorrectly validated wildcard SSL certificates that contain literal IP addresses. An attacker could possibly exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications. Various other issues were also addressed.

tags | advisory, web, protocol
systems | linux, ubuntu
advisories | CVE-2014-0138, CVE-2014-0139
SHA-256 | d2b70d65e2f00a87b476048dbbdf46b1ba245dc916bb699db1c4197934f87024

Ubuntu Security Notice USN-2167-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-2167-1
April 14, 2014

curl vulnerabilities
============================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in curl.

Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries

Details:

Steve Holme discovered that libcurl incorrectly reused wrong connections
when using protocols other than HTTP and FTP. This could lead to the use of
unintended credentials, possibly exposing sensitive information.
(CVE-2014-0138)

Richard Moore discovered that libcurl incorrectly validated wildcard SSL
certificates that contain literal IP addresses. An attacker could possibly
exploit this to perform a man in the middle attack to view sensitive
information or alter encrypted communications. (CVE-2014-0139)

Update instructions:

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

Ubuntu 13.10:
libcurl3 7.32.0-1ubuntu1.4
libcurl3-gnutls 7.32.0-1ubuntu1.4
libcurl3-nss 7.32.0-1ubuntu1.4

Ubuntu 12.10:
libcurl3 7.27.0-1ubuntu1.9
libcurl3-gnutls 7.27.0-1ubuntu1.9
libcurl3-nss 7.27.0-1ubuntu1.9

Ubuntu 12.04 LTS:
libcurl3 7.22.0-3ubuntu4.8
libcurl3-gnutls 7.22.0-3ubuntu4.8
libcurl3-nss 7.22.0-3ubuntu4.8

Ubuntu 10.04 LTS:
libcurl3 7.19.7-1ubuntu1.7
libcurl3-gnutls 7.19.7-1ubuntu1.7

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

References:
http://www.ubuntu.com/usn/usn-2167-1
CVE-2014-0138, CVE-2014-0139

Package Information:
https://launchpad.net/ubuntu/+source/curl/7.32.0-1ubuntu1.4
https://launchpad.net/ubuntu/+source/curl/7.27.0-1ubuntu1.9
https://launchpad.net/ubuntu/+source/curl/7.22.0-3ubuntu4.8
https://launchpad.net/ubuntu/+source/curl/7.19.7-1ubuntu1.7
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