SB2011080601 - Cryptographic issues in Ruby
Published: August 6, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011080601
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cryptographic issues (CVE-ID: CVE-2011-3009)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Ruby before 1.8.6-p114 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900.
Remediation
Install update from vendor's website.
References
- http://redmine.ruby-lang.org/issues/show/4338
- http://rhn.redhat.com/errata/RHSA-2012-0070.html
- http://www.openwall.com/lists/oss-security/2011/07/20/1
- http://www.redhat.com/support/errata/RHSA-2011-1581.html
- http://www.securityfocus.com/bid/49126
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69157