CVE-2011-4815

Publication date 29 December 2011

Last updated 24 July 2024

Ubuntu priority

Description

Ruby (aka CRuby) before 1.8.7-p357 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ruby1.8	11.10 oneiric	Fixed 1.8.7.352-2ubuntu0.1
	11.04 natty	Fixed 1.8.7.302-2ubuntu0.1
	10.10 maverick	Fixed 1.8.7.299-2ubuntu0.1
	10.04 LTS lucid	Fixed 1.8.7.249-2ubuntu0.1
	8.04 LTS hardy	Ignored end of life
ruby1.9	11.10 oneiric	Not in release
	11.04 natty	Not in release
	10.10 maverick	Not in release
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not affected
ruby1.9.1	11.10 oneiric	Not affected
	11.04 natty	Not affected
	10.10 maverick	Not affected
	10.04 LTS lucid	Not affected
	8.04 LTS hardy	Not in release

Notes

mdeslaur

ruby 1.9+ randomizes hash

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ruby1.8	Upstream: http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=34151

References

Related Ubuntu Security Notices (USN)

USN-1377-1
Ruby vulnerabilities
28 February 2012