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CVE-2009-1904

Publication date 11 June 2009

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

The BigDecimal library in Ruby 1.8.6 before p369 and 1.8.7 before p173 allows context-dependent attackers to cause a denial of service (application crash) via a string argument that represents a large number, as demonstrated by an attempted conversion to the Float data type.

Read the notes from the security team

Status

Package Ubuntu Release Status
ruby1.8 11.10 oneiric
Not affected
11.04 natty
Not affected
10.10 maverick
Not affected
10.04 LTS lucid
Not affected
9.10 karmic
Not affected
9.04 jaunty
Fixed 1.8.7.72-3ubuntu0.1
8.10 intrepid
Fixed 1.8.7.72-1ubuntu0.2
8.04 LTS hardy
Fixed 1.8.6.111-2ubuntu1.3
6.06 LTS dapper
Fixed 1.8.4-1ubuntu1.7
ruby1.9 11.10 oneiric Not in release
11.04 natty Not in release
10.10 maverick Not in release
10.04 LTS lucid
Fixed 1.9.0.5-1ubuntu2
9.10 karmic
Fixed 1.9.0.5-1ubuntu1.2
9.04 jaunty
Fixed 1.9.0.2-9ubuntu1.1
8.10 intrepid
Fixed 1.9.0.2-7ubuntu1.2
8.04 LTS hardy Ignored end of life
6.06 LTS dapper Ignored end of life

Notes

mdeslaur

PoC here: http://github.com/NZKoz/bigdecimal-segfault-fix/tree/master PoC here: http://www.ruby-lang.org/en/news/2009/06/09/dos-vulnerability-in-bigdecimal/ best PoC here: http://redmine.ruby-lang.org/issues/show/794 backporting patch may introduce regression, see RH bug

References

Related Ubuntu Security Notices (USN)

    • USN-900-1
    • Ruby vulnerabilities
    • 16 February 2010
    • USN-805-1
    • Ruby vulnerabilities
    • 20 July 2009

Other references