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
| Affected Software | Affected Version | How 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 | =5.0 | |
| Fedora | =9 | |
| 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 | |
| redhat enterprise Linux server | =4.0 | |
| redhat enterprise Linux server | =5.0 | |
| redhat enterprise Linux server aus | =5.3 | |
| redhat enterprise Linux workstation | =4.0 | |
| redhat enterprise Linux workstation | =5.0 |
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Reference Links
- https://rhn.redhat.com/errata/RHSA-2009-1095.html
- https://bugzilla.redhat.com/show_bug.cgi?id=503579
- http://secunia.com/advisories/35431
- http://www.vupen.com/english/advisories/2009/1572
- http://secunia.com/secunia_research/2009-19/
- http://secunia.com/advisories/34241
- http://www.securityfocus.com/bid/35326
- https://bugzilla.mozilla.org/show_bug.cgi?id=486269
- http://www.mozilla.org/security/announce/2009/mfsa2009-28.html
- http://secunia.com/advisories/35331
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.html
- https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.html
- http://www.securitytracker.com/id?1022386
- http://www.securityfocus.com/bid/35360
- http://secunia.com/advisories/35468
- http://www.debian.org/security/2009/dsa-1820
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468
- http://secunia.com/advisories/35415
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10628
- http://www.securityfocus.com/archive/1/504260/100/0/threaded
Frequently Asked Questions
What is the severity of CVE-2009-1837?
CVE-2009-1837 has a moderate severity rating due to the potential for a race condition leading to potential exploitation.
How do I fix CVE-2009-1837?
To fix CVE-2009-1837, update your Mozilla Firefox to versions 3.0.10 or later.
What versions of Firefox are affected by CVE-2009-1837?
CVE-2009-1837 affects Mozilla Firefox versions 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6, 3.0.7, 3.0.8, 3.0.9, and beta versions before 3.0.11.
What is the impact of CVE-2009-1837?
The impact of CVE-2009-1837 may allow attackers to execute arbitrary code by triggering a race condition when accessing the properties of a NPObject.
Who discovered CVE-2009-1837?
CVE-2009-1837 was discovered by Jakob Balle and Carsten Eiram of Secunia Research.
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