Ubuntu Security Notices
USN-805-1

USN-805-1: Ruby vulnerabilities

Publication date

20 July 2009

Overview

Ruby vulnerabilities

Releases

9.04 8.10 8.04 6.06

Packages

ruby1.8 -
ruby1.9 -

Details

It was discovered that Ruby did not properly validate certificates. An
attacker could exploit this and present invalid or revoked X.509
certificates. (CVE-2009-0642)

It was discovered that Ruby did not properly handle string arguments that
represent large numbers. An attacker could exploit this and cause a denial
of service. (CVE-2009-1904)

It was discovered that Ruby did not properly validate certificates. An
attacker could exploit this and present invalid or revoked X.509
certificates. (CVE-2009-0642)

It was discovered that Ruby did not properly handle string arguments that
represent large numbers. An attacker could exploit this and cause a denial
of service. (CVE-2009-1904)

Update instructions

In general, a standard system upgrade is sufficient 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
9.04 jaunty	ruby1.8 – 1.8.7.72-3ubuntu0.1
	ruby1.9 – 1.9.0.2-9ubuntu1.1
	libruby1.8 – 1.8.7.72-3ubuntu0.1
	libruby1.9 – 1.9.0.2-9ubuntu1.1
8.10 intrepid	ruby1.8 – 1.8.7.72-1ubuntu0.2
	ruby1.9 – 1.9.0.2-7ubuntu1.2
	libruby1.8 – 1.8.7.72-1ubuntu0.2
	libruby1.9 – 1.9.0.2-7ubuntu1.2
8.04 hardy	ruby1.8 – 1.8.6.111-2ubuntu1.3
8.04 hardy	libruby1.8 – 1.8.6.111-2ubuntu1.3
6.06 dapper	ruby1.8 – 1.8.4-1ubuntu1.7
6.06 dapper	libruby1.8 – 1.8.4-1ubuntu1.7

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References

USN-900-1

USN-900-1