USN-1721-1: curl vulnerability

Ubuntu Security Notice USN-1721-1

12th February, 2013

curl vulnerability

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

  • Ubuntu 12.10

Summary

curl could be made to crash or run programs if it opened a malicious URL.

Software description

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

Details

It was discovered that curl incorrectly handled SASL authentication when
communicating over POP3, SMTP or IMAP. If a user or automated system were
tricked into processing a specially crafted URL, an attacker could cause
a denial of service, or possibly execute arbitrary code. The default
compiler options for affected releases should reduce the vulnerability to a
denial of service.

Update instructions

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

Ubuntu 12.10:
libcurl3-nss 7.27.0-1ubuntu1.1
libcurl3-gnutls 7.27.0-1ubuntu1.1
libcurl3 7.27.0-1ubuntu1.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2013-0249