Ubuntu 15.04: USN-2591-1 Critical: Curl Authentication Issues

ubuntu

April 30, 2015

Several security issues were fixed in curl.

Summary

Several security issues were fixed in curl.

Software Description:

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

Details:

Paras Sethia discovered that curl could incorrectly re-use NTLM HTTP

credentials when subsequently connecting to the same host over HTTP.

(CVE-2015-3143)

Hanno Böck discovered that curl incorrectly handled zero-length host names.

If a user or automated system were tricked into using a specially crafted

host name, an attacker could possibly use this issue to cause curl to

crash, resulting in a denial of service, or possibly execute arbitrary

code. This issue only affected Ubuntu 14.10 and Ubuntu 15.04.

(CVE-2015-3144)

Hanno Böck discovered that curl incorrectly handled cookie path elements.

If a user or automated system were tricked into parsing a specially crafted

cookie, an attacker could possibly use this issue to cause curl to crash,

resulting in a denial of service, or possibly execute arbitrary code. This

issue only a...

Read the Full Advisory

Topics Covered

security advisory denial of service critical Ubuntu curl

Update Instructions

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

Ubuntu 15.04:
  libcurl3                        7.38.0-3ubuntu2.2
  libcurl3-gnutls                 7.38.0-3ubuntu2.2
  libcurl3-nss                    7.38.0-3ubuntu2.2

Ubuntu 14.10:
  libcurl3                        7.37.1-1ubuntu3.4
  libcurl3-gnutls                 7.37.1-1ubuntu3.4
  libcurl3-nss                    7.37.1-1ubuntu3.4

Ubuntu 14.04 LTS:
  libcurl3                        7.35.0-1ubuntu2.5
  libcurl3-gnutls                 7.35.0-1ubuntu2.5
  libcurl3-nss                    7.35.0-1ubuntu2.5

Ubuntu 12.04 LTS:
  libcurl3                        7.22.0-3ubuntu4.14
  libcurl3-gnutls                 7.22.0-3ubuntu4.14
  libcurl3-nss                    7.22.0-3ubuntu4.14

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