Public Date:
503579: CVE-2009-1837 Firefox Race condition while accessing the private data of a NPObject JS wrapper class object

The MITRE CVE dictionary describes this issue as:

Race condition in the NPObjWrapper_NewResolve function in modules/plugin/base/src/nsJSNPRuntime.cpp in xul.dll in Mozilla Firefox 3 before 3.0.11 might allow remote attackers to execute arbitrary code via a page transition during Java applet loading, related to a use-after-free vulnerability for memory associated with a destroyed Java object.

Find out more about CVE-2009-1837 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 6.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 5 (firefox) RHSA-2009:1095 2009-06-11
Red Hat Enterprise Linux version 4 (firefox) RHSA-2009:1095 2009-06-11

Affected Packages State

Platform Package State
Red Hat Enterprise Linux version 5 xulrunner Fixed