CVE-2011-4838
MEDIUM severity · CVSS 5 · Uncontrolled resource consumption
5CVSS MEDIUM
Summary
JRuby before 1.6.5.1 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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impactNone
Integrity impactNone
Availability impact—
Exploit probability (EPSS)4%
AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://jruby.org/2011/12/27/jruby-1-6-5-1.htmlAdvisory
- http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
- http://rhn.redhat.com/errata/RHSA-2012-1232.html
- http://secunia.com/advisories/47407Advisory
- http://secunia.com/advisories/50084Advisory
- http://security.gentoo.org/glsa/glsa-201207-06.xmlAdvisory
- http://www.kb.cert.org/vuls/id/903934Advisory
- http://www.nruns.com/_downloads/advisory28122011.pdfAdvisory