critical
9.3
CWE
362 416
Advisory Published
CVE Published
Updated

CVE-2009-1837: Race Condition

First published: Mon Jun 01 2009(Updated: )

Jakob Balle and Carsten Eiram of Secunia Research reported a race condition in NPObjWrapper_NewResolve when accessing the properties of a NPObject, a wrapped JSObject. Balle and Eiram demonstrated that this condition could be reached by navigating away from a web page during the loading of a Java applet. Under such conditions the Java object would be destroyed but later called into resulting in a free memory read. An attacker could potentially write to the freed memory before it is reused and run arbitrary code on the victim's computer.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox=3.0.7
Mozilla Firefox=3.0.9
Mozilla Firefox=3.0.8
Mozilla Firefox=3.0.4
Mozilla Firefox=3.0.5
Mozilla Firefox=3.0-beta2
Mozilla Firefox=3.0.10
Mozilla Firefox=3.0.3
Mozilla Firefox=3.0.6
Mozilla Firefox=3.0
Mozilla Firefox=3.0.1
Mozilla Firefox=3.0.2
Mozilla Firefox=3.0-beta5
Mozilla Firefox=3.0-alpha
Mozilla Firefox>=3.0<3.0.11
Debian Debian Linux=5.0
Fedoraproject Fedora=9
Fedoraproject Fedora=10
Red Hat Enterprise Linux=4.0
Red Hat Enterprise Linux=5.0
Redhat Enterprise Linux Desktop=4.0
Redhat Enterprise Linux Desktop=5.0
Redhat Enterprise Linux Eus=4.8
Redhat Enterprise Linux Eus=5.3
Red Hat Enterprise Linux Server=4.0
Red Hat Enterprise Linux Server=5.0
Red Hat Enterprise Linux Server=5.3
Redhat Enterprise Linux Workstation=4.0
Redhat Enterprise Linux Workstation=5.0

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203