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Security Flaws Discovered, Patched in Ruby 1.8 and 1.9

, June 23, 2008

Patches have been issued for bugs in several of Ruby's array- and string-related functions.

Late last week, Drew Yao of Apple Product Security apparently discovered several vulnerabilities in multiple versions of Ruby that could allow attackers to execute arbitrary code or create a denial of service condition.

The vulnerabilities stemmed from unchecked overflow conditions in several array-handling routines, and from an unsafe memory allocation in Ruby's string processing. The Ruby maintainers have since released patches for these vulnerabilities. Vulnerable versions include:

  • 1.8.4 and all prior versions
  • 1.8.5-p230 and all prior versions
  • 1.8.6-p229 and all prior versions
  • 1.8.7-p21 and all prior versions
  • 1.9.0-1 and all prior versions

Patches are available here:
http://www.ruby-lang.org/en/news /2008/06/20/arbitrary-code-execution-vulnerabilities/


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