CVE-2012-2739

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.

• CWE-310

• http://armoredbarista.blogspot.de/2012/02/investigating-hashdos-issue.htmlExploit
• http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-May/010238.htmlVendor Advisory
• http://www.kb.cert.org/vuls/id/903934US Government Resource
• http://www.nruns.com/_downloads/advisory28122011.pdf
• http://www.ocert.org/advisories/ocert-2011-003.html
• http://www.openwall.com/lists/oss-security/2012/06/15/12
• http://www.openwall.com/lists/oss-security/2012/06/17/1
• https://bugzilla.redhat.com/show_bug.cgi?id=750533
• http://armoredbarista.blogspot.de/2012/02/investigating-hashdos-issue.htmlExploit
• http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-May/010238.htmlVendor Advisory
• http://www.kb.cert.org/vuls/id/903934US Government Resource
• http://www.nruns.com/_downloads/advisory28122011.pdf
• http://www.ocert.org/advisories/ocert-2011-003.html
• http://www.openwall.com/lists/oss-security/2012/06/15/12
• http://www.openwall.com/lists/oss-security/2012/06/17/1
• https://bugzilla.redhat.com/show_bug.cgi?id=750533

Published

Nov 28, 2012

Last Modified

Jun 16, 2026

Status

Modified

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