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Critical · 9.8 Known exploited · Ransomware Public exploit CVE-2012-0507 EUVD-2012-0539GHSA-43xj-964v-hcjf

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 2 and earlier, 6 Update 30 and earlier…

Published Jun 7, 2012 · Updated Aug 14, 2026 · Assigned by oracle

Description

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 2 and earlier, 6 Update 30 and earlier, and 5.0 Update 33 and earlier allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Concurrency. NOTE: the previous information was obtained from the February 2012 Oracle CPU. Oracle has not commented on claims from a downstream vendor and third party researchers that this issue occurs because the AtomicReferenceArray class implementation does not ensure that the array is of the Object[] type, which allows attackers to cause a denial of service (JVM crash) or bypass Java sandbox restrictions. NOTE: this issue was originally mapped to CVE-2011-3571, but that identifier was already assigned to a different issue.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Debian

Security tracker ↗
ReleasePackageFixed inAdvisory
Debian 6.0 openjdk-6 6b18-1.8.13-0+squeeze1 DSA-2420-1

Red Hat

Security tracker ↗
ReleasePackageFixed inAdvisory
RHEL 6 java-1.5.0-ibm +6 1:1.5.0.13.1-1jpp.2.el6_2 RHSA-2012:0508
RHEL 6 java-1.6.0-ibm +6 1:1.6.0.10.1-1jpp.5.el6_2 RHSA-2012:0514
RHEL 6 java-1.6.0-openjdk +4 1:1.6.0.0-1.43.1.10.6.el6_2 RHSA-2012:0135
RHEL 6 java-1.6.0-sun +5 1:1.6.0.31-1jpp.1.el6_2 RHSA-2012:0139
RHEL 5 java-1.5.0-ibm +7 1:1.5.0.13.1-1jpp.1.el5 RHSA-2012:0508
RHEL 5 java-1.6.0-ibm +7 1:1.6.0.10.1-1jpp.1.el5 RHSA-2012:0514
RHEL 5 java-1.6.0-openjdk +4 1:1.6.0.0-1.25.1.10.6.el5_8 RHSA-2012:0322
RHEL 5 java-1.6.0-sun +5 1:1.6.0.31-1jpp.1.el5 RHSA-2012:0139
RHEL 4 java-1.6.0-sun +5 1:1.6.0.31-1jpp.1.el4 RHSA-2012:0139
Show 1 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Red Hat Network Satellite 5 java-1.6.0-ibm +1 1:1.6.0.14.0-1jpp.1.el5_9 RHSA-2013:1455

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Exploit-DB 1

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Advisories 7

References