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USN-1424-1: OpenSSL vulnerabilities

19 April 2012

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



  • openssl - Secure Socket Layer (SSL) cryptographic library and tools


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 8.04
Ubuntu 11.10
Ubuntu 11.04
Ubuntu 10.04

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