CVE-2012-2739

Public Exploit

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.04% Top 25%
Vendor Advisory java.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.nruns.com/_downloads/advisory28122011.pdf
http://armoredbarista.blogspot.de/2012/02/investigating-hashdos-issue.html exploit
https://bugzilla.redhat.com/show_bug.cgi?id=750533
http://www.openwall.com/lists/oss-security/2012/06/17/1 mailing list
http://www.kb.cert.org/vuls/id/903934 third party advisory us government resource
http://www.openwall.com/lists/oss-security/2012/06/15/12 mailing list
http://mail.openjdk.java.net/pipermail/core-libs-dev/2012-May/010238.html mailing list vendor advisory
http://www.ocert.org/advisories/ocert-2011-003.html

Frequently Asked Questions

What is the severity of CVE-2012-2739?
CVE-2012-2739 has been scored as a medium severity vulnerability.
How to fix CVE-2012-2739?
To fix CVE-2012-2739, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-2739 being actively exploited in the wild?
It is possible that CVE-2012-2739 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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