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CVE-2011-4815

Publication date 29 December 2011

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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

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
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