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==========================================================================Ubuntu Security Notice USN-1801-1
April 16, 2013

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

- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

Applications using libcurl could be made to expose sensitive information
over the network.

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

Details:

YAMADA Yasuharu discovered that libcurl was vulnerable to a cookie
leak when doing requests across domains with matching tails. curl did
not properly restrict cookies to domains and subdomains. If a user or
automated system were tricked into processing a specially crafted URL,
an attacker could read cookie values stored by unrelated webservers.

Update instructions:

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

Ubuntu 12.10:
  curl                            7.27.0-1ubuntu1.2
  libcurl3                        7.27.0-1ubuntu1.2

Ubuntu 12.04 LTS:
  curl                            7.22.0-3ubuntu4.1
  libcurl3                        7.22.0-3ubuntu4.1

Ubuntu 11.10:
  curl                            7.21.6-3ubuntu3.3
  libcurl3                        7.21.6-3ubuntu3.3

Ubuntu 10.04 LTS:
  curl                            7.19.7-1ubuntu1.2
  libcurl3                        7.19.7-1ubuntu1.2

Ubuntu 8.04 LTS:
  curl                            7.18.0-1ubuntu2.4
  libcurl3                        7.18.0-1ubuntu2.4

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

References:
  http://www.ubuntu.com/usn/usn-1801-1
  CVE-2013-1944

Package Information:
  https://launchpad.net/ubuntu/+source/curl/7.27.0-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/curl/7.22.0-3ubuntu4.1
  https://launchpad.net/ubuntu/+source/curl/7.21.6-3ubuntu3.3
  https://launchpad.net/ubuntu/+source/curl/7.19.7-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/curl/7.18.0-1ubuntu2.4