USN-2097-1: curl vulnerability

Ubuntu Security Notice USN-2097-1

3rd February, 2014

curl vulnerability

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


libcurl could be made to expose sensitive information.

Software description

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


Paras Sethia and Yehezkel Horowitz discovered that libcurl incorrectly
reused connections when NTLM authentication was being used. This could lead
to the use of unintended credentials, possibly exposing sensitive

Update instructions

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

Ubuntu 13.10:
libcurl3-nss 7.32.0-1ubuntu1.3
libcurl3-gnutls 7.32.0-1ubuntu1.3
libcurl3 7.32.0-1ubuntu1.3
Ubuntu 12.10:
libcurl3-nss 7.27.0-1ubuntu1.8
libcurl3-gnutls 7.27.0-1ubuntu1.8
libcurl3 7.27.0-1ubuntu1.8
Ubuntu 12.04 LTS:
libcurl3-nss 7.22.0-3ubuntu4.7
libcurl3-gnutls 7.22.0-3ubuntu4.7
libcurl3 7.22.0-3ubuntu4.7
Ubuntu 10.04 LTS:
libcurl3-gnutls 7.19.7-1ubuntu1.6
libcurl3 7.19.7-1ubuntu1.6

To update your system, please follow these instructions:

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