National Cyber Awareness System

Vulnerability Summary for CVE-2012-2739

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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US-CERT Vulnerability Note: VU#903934

Name: VU#903934

Hyperlink:http://www.kb.cert.org/vuls/id/903934

External Source: CONFIRM

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

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

External Source: MLIST

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

Hyperlink:http://www.openwall.com/lists/oss-security/2012/06/17/1

External Source: MLIST

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

Hyperlink:http://www.openwall.com/lists/oss-security/2012/06/15/12

External Source: MISC

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

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

External Source: MISC

Name: http://www.nruns.com/_downloads/advisory28122011.pdf

Hyperlink:http://www.nruns.com/_downloads/advisory28122011.pdf

External Source: MLIST

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

Type: Advisory

Hyperlink:http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-May/010238.html

External Source: MISC

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

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