USN-2097-1: curl vulnerability

3 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 information.

Update instructions

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

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