Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oracle | Jdk | <= 1.7.0 |
| Oracle | Jre | <= 1.7.0 |
| Oracle | Openjdk | <= 1.7.0 |
Related Weaknesses (CWE)
References
- 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
FAQ
What is CVE-2012-2739?
CVE-2012-2739 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 con...
How severe is CVE-2012-2739?
CVE-2012-2739 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-2739?
Check the references section above for vendor advisories and patch information. Affected products include: Oracle Jdk, Oracle Jre, Oracle Openjdk.