[Trisquel-security] [USN-1613-2] Python 2.4 vulnerabilities

[Jamie Strandboge]

==========================================================================
Ubuntu Security Notice USN-1613-2
October 17, 2012

python2.4 vulnerabilities
==========================================================================

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

- Ubuntu 8.04 LTS

Summary:

Several security issues were fixed in Python 2.4.

Software Description:
- python2.4: An interactive high-level object-oriented language (version
2.4)

Details:

USN-1613-1 fixed vulnerabilities in Python 2.5. This update provides the
corresponding updates for Python 2.4.

Original advisory details:

 It was discovered that Python would prepend an empty string to sys.path
 under certain circumstances. A local attacker with write access to the
 current working directory could exploit this to execute arbitrary code.
 (CVE-2008-5983)

 It was discovered that the audioop module did not correctly perform input
 validation. If a user or automatated system were tricked into opening a
 crafted audio file, an attacker could cause a denial of service via
 application crash. (CVE-2010-1634, CVE-2010-2089)

 Giampaolo Rodola discovered several race conditions in the smtpd module.
 A remote attacker could exploit this to cause a denial of service via
 daemon outage. (CVE-2010-3493)

 It was discovered that the CGIHTTPServer module did not properly perform
 input validation on certain HTTP GET requests. A remote attacker could
 potentially obtain access to CGI script source files. (CVE-2011-1015)

 Niels Heinen discovered that the urllib and urllib2 modules would process
 Location headers that specify a redirection to file: URLs. A remote
 attacker could exploit this to obtain sensitive information or cause a
 denial of service. (CVE-2011-1521)

 It was discovered that SimpleHTTPServer did not use a charset parameter in
 the Content-Type HTTP header. An attacker could potentially exploit this
 to conduct cross-site scripting (XSS) attacks against Internet Explorer 7
 users. (CVE-2011-4940)

 It was discovered that Python distutils contained a race condition when
 creating the ~/.pypirc file. A local attacker could exploit this to obtain
 sensitive information. (CVE-2011-4944)

 It was discovered that SimpleXMLRPCServer did not properly validate its
 input when handling HTTP POST requests. A remote attacker could exploit
 this to cause a denial of service via excessive CPU utilization.
 (CVE-2012-0845)

 It was discovered that the Expat module in Python 2.5 computed hash values
 without restricting the ability to trigger hash collisions predictably. If
 a user or application using pyexpat were tricked into opening a crafted XML
 file, an attacker could cause a denial of service by consuming excessive
 CPU resources. (CVE-2012-0876)

 Tim Boddy discovered that the Expat module in Python 2.5 did not properly
 handle memory reallocation when processing XML files. If a user or
 application using pyexpat were tricked into opening a crafted XML file, an
 attacker could cause a denial of service by consuming excessive memory
 resources. (CVE-2012-1148)

Update instructions:

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

Ubuntu 8.04 LTS:
  python2.4                       2.4.5-1ubuntu4.4
  python2.4-minimal               2.4.5-1ubuntu4.4

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

References:
  http://www.ubuntu.com/usn/usn-1613-2
  http://www.ubuntu.com/usn/usn-1613-1
  CVE-2008-5983, CVE-2010-1634, CVE-2010-2089, CVE-2010-3493,
  CVE-2011-1015, CVE-2011-1521, CVE-2011-4940, CVE-2011-4944,
  CVE-2012-0845, CVE-2012-0876, CVE-2012-1148

Package Information:
  https://launchpad.net/ubuntu/+source/python2.4/2.4.5-1ubuntu4.4




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