SB2012120717 - Slackware Linux update for ruby

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Main Vulnerability Database SB2012120717

SB2012120717 - Slackware Linux update for ruby

Published: December 7, 2012 Updated: May 6, 2017

Security Bulletin ID SB2012120717
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Cryptographic issues (CVE-ID: CVE-2012-5371)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

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.


Remediation

Install update from vendor's website.

References