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Overview

Vulnerability Score 5.0 5.0
CVE Id CVE-2012-2739
Last Modified 28 Nov 2012 12:00:00
Published 28 Nov 2012 08:03:09
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity LOW
Authentication NONE

CVE-2012-2739

Summary

Oracle Java SE before 7 Update 6, and OpenJDK 7 before 7u6 build 12 and 8 before build 39, 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.

Vulnerable Systems

Application

  • Oracle Jdk 1.7.0

  • Oracle Jre 1.7.0

  • Oracle Openjdk 1.6.0

  • Oracle Openjdk 1.7.0

  • Oracle Openjdk 1.8.0


References

CERT-VN - VU#903934

CONFIRM - https://bugzilla.redhat.com/show_bug.cgi?id=750533

MLIST - [oss-security] 20120616 Re: CVE request: java hashdos vulnerability

MLIST - [oss-security] 20120615 CVE request: java hashdos vulnerability

MISC - http://www.ocert.org/advisories/ocert-2011-003.html

MISC - http://www.nruns.com/_downloads/advisory28122011.pdf

MLIST - [core-libs-dev] 20120522 Review Request CR#7118743 : Alternative Hashing for String with Hash-based Maps

MISC - http://armoredbarista.blogspot.de/2012/02/investigating-hashdos-issue.html


Last Updated: 27 May 2016 10:49:51