CVE-2012-5371: ruby-lang ruby Cryptographic Issues

Vulnerability summary

CVE-2012-5371 is a medium (CVSS 5.0) Cryptographic Issues vulnerability in ruby-lang ruby. EPSS estimates a 3.33% chance of exploitation in the next 30 days, higher than 88.6% of scored vulnerabilities.

Timeline

1. 28-11-2012
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-310Cryptographic IssuesWeaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.