1. Ubuntu Security Notices
  2. USN-620-1

USN-620-1: OpenSSL vulnerabilities

Publication date

26 June 2008

Overview

OpenSSL vulnerabilities

Releases

Packages

Details

It was discovered that OpenSSL was vulnerable to a double-free
when using TLS server extensions. A remote attacker could send a
crafted packet and cause a denial of service via application crash
in applications linked against OpenSSL. Ubuntu 8.04 LTS does not
compile TLS server extensions by default. (CVE-2008-0891)

It was discovered that OpenSSL could dereference a NULL pointer.
If a user or automated system were tricked into connecting to a
malicious server with particular cipher suites, a remote attacker
could cause a denial of service via application crash.
(CVE-2008-1672)

It was discovered that OpenSSL was vulnerable to a double-free
when using TLS server extensions. A remote attacker could send a
crafted packet and cause a denial of service via application crash
in applications linked against OpenSSL. Ubuntu 8.04 LTS does not
compile TLS server extensions by default. (CVE-2008-0891)

It was discovered that OpenSSL could dereference a NULL pointer.
If a user or automated system were tricked into connecting to a
malicious server with particular cipher suites, a remote attacker
could cause a denial of service via application crash.
(CVE-2008-1672)

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
8.04 hardy libssl0.9.8 –  0.9.8g-4ubuntu3.3

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References

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