USN-750-1: OpenSSL vulnerability

Publication date

30 March 2009

Overview

OpenSSL vulnerability


Packages

Details

It was discovered that OpenSSL did not properly validate the length of an
encoded BMPString or UniversalString when printing ASN.1 strings. If a user
or automated system were tricked into processing a crafted certificate, an
attacker could cause a denial of service via application crash in
applications linked against OpenSSL.

It was discovered that OpenSSL did not properly validate the length of an
encoded BMPString or UniversalString when printing ASN.1 strings. If a user
or automated system were tricked into processing a crafted certificate, an
attacker could cause a denial of service via application crash in
applications linked against OpenSSL.

Update instructions

After a standard system upgrade you need to reboot your computer to effect the necessary changes.

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
8.10 intrepid libssl0.9.8 –  0.9.8g-10.1ubuntu2.2
8.04 hardy libssl0.9.8 –  0.9.8g-4ubuntu3.5
7.10 gutsy libssl0.9.8 –  0.9.8e-5ubuntu3.4
6.06 dapper libssl0.9.8 –  0.9.8a-7ubuntu0.7

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