[USN-1424-1] OpenSSL vulnerabilities

Jamie Strandboge jamie at canonical.com
Thu Apr 19 22:40:55 UTC 2012


==========================================================================
Ubuntu Security Notice USN-1424-1
April 19, 2012

openssl vulnerabilities
==========================================================================

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

- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS
- Ubuntu 8.04 LTS

Summary:

An application using OpenSSL could be made to crash or run programs if it
opened a specially crafted file.

Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools

Details:

It was discovered that OpenSSL could be made to dereference a NULL pointer
when processing S/MIME messages. A remote attacker could use this to cause
a denial of service. These issues did not affect Ubuntu 8.04 LTS.
(CVE-2006-7250, CVE-2012-1165)

Tavis Ormandy discovered that OpenSSL did not properly perform bounds
checking when processing DER data via BIO or FILE functions. A remote
attacker could trigger this flaw in services that used SSL to cause a
denial of service or possibly execute arbitrary code with application
privileges. (CVE-2012-2110)

Update instructions:

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

Ubuntu 11.10:
  libssl1.0.0                     1.0.0e-2ubuntu4.4

Ubuntu 11.04:
  libssl0.9.8                     0.9.8o-5ubuntu1.4

Ubuntu 10.04 LTS:
  libssl0.9.8                     0.9.8k-7ubuntu8.10

Ubuntu 8.04 LTS:
  libssl0.9.8                     0.9.8g-4ubuntu3.17

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-1424-1
  CVE-2006-7250, CVE-2012-1165, CVE-2012-2110

Package Information:
  https://launchpad.net/ubuntu/+source/openssl/1.0.0e-2ubuntu4.4
  https://launchpad.net/ubuntu/+source/openssl/0.9.8o-5ubuntu1.4
  https://launchpad.net/ubuntu/+source/openssl/0.9.8k-7ubuntu8.10
  https://launchpad.net/ubuntu/+source/openssl/0.9.8g-4ubuntu3.17


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