CVE-2012-4420

HighCVSS 7.5/10Last modified Jun 16, 2026

Description

An information disclosure flaw was found in the way the Java Virtual Machine (JVM) implementation of Java SE 7 as provided by OpenJDK 7 incorrectly initialized integer arrays after memory allocation (in certain circumstances they had nonzero elements right after the allocation). A remote attacker could use this flaw to obtain potentially sensitive information.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-200

Affected software

Vendor	Product	Versions
java-1.7.0-openjdk	java-1.7.0-openjdk	1.7.0_04 to 1.7.0_10

References

http://www.openwall.com/lists/oss-security/2012/09/13/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/55538Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/cve-2012-4420Third Party Advisory
https://bugs.java.com/bugdatabase/view_bug.do?bug_id=7196857Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-4420Issue Tracking, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/78693Third Party Advisory, VDB Entry
https://www.openwall.com/lists/oss-security/2012/09/12/4Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2012/09/13/3Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/55538Third Party Advisory, VDB Entry
https://access.redhat.com/security/cve/cve-2012-4420Third Party Advisory
https://bugs.java.com/bugdatabase/view_bug.do?bug_id=7196857Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-4420Issue Tracking, Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/78693Third Party Advisory, VDB Entry
https://www.openwall.com/lists/oss-security/2012/09/12/4Mailing List, Third Party Advisory

Timeline

Published: Dec 26, 2019
Last modified: Jun 16, 2026
NVD status: Modified

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