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CVE-2012-5371

Publication date 28 November 2012

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Ruby (aka CRuby) 1.9 before 1.9.3-p327 and 2.0 before r37575 computes hash values without properly 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, as demonstrated by a universal multicollision attack against a variant of the MurmurHash2 algorithm, a different vulnerability than CVE-2011-4815.

Status

Package Ubuntu Release Status
ruby1.8 13.10 saucy
Not affected
13.04 raring
Not affected
12.10 quantal
Not affected
12.04 LTS precise
Not affected
11.10 oneiric
Not affected
10.04 LTS lucid
Not affected
8.04 LTS hardy Ignored end of life
ruby1.9.1 13.10 saucy
Fixed 1.9.3.194-7ubuntu1
13.04 raring
Fixed 1.9.3.194-7ubuntu1
12.10 quantal
Fixed 1.9.3.194-1ubuntu1.3
12.04 LTS precise
Fixed 1.9.3.0-1ubuntu2.5
11.10 oneiric Ignored end of life
10.04 LTS lucid Ignored end of life
8.04 LTS hardy Not in release

Patch details

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

Package Patch details
ruby1.9.1