USN-2882-1: curl vulnerability

27 January 2016

curl vulnerability

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

  • Ubuntu 15.10
  • Ubuntu 15.04
  • Ubuntu 14.04 LTS
  • Ubuntu 12.04 LTS


curl would incorrectly re-use credentials.

Software Description

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


Isaac Boukris discovered that curl could incorrectly re-use NTLM proxy credentials when subsequently connecting to the same host.

Update instructions

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

Ubuntu 15.10
libcurl3 - 7.43.0-1ubuntu2.1
libcurl3-gnutls - 7.43.0-1ubuntu2.1
libcurl3-nss - 7.43.0-1ubuntu2.1
Ubuntu 15.04
libcurl3 - 7.38.0-3ubuntu2.3
libcurl3-gnutls - 7.38.0-3ubuntu2.3
libcurl3-nss - 7.38.0-3ubuntu2.3
Ubuntu 14.04 LTS
libcurl3 - 7.35.0-1ubuntu2.6
libcurl3-gnutls - 7.35.0-1ubuntu2.6
libcurl3-nss - 7.35.0-1ubuntu2.6
Ubuntu 12.04 LTS
libcurl3 - 7.22.0-3ubuntu4.15
libcurl3-gnutls - 7.22.0-3ubuntu4.15
libcurl3-nss - 7.22.0-3ubuntu4.15

To update your system, please follow these instructions:

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