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Vulnerability Note VU#847200Mozilla contains integer overflows in bitmap image decoderOverviewA vulnerability in the way Mozilla and its derived programs handle certain bitmap images could allow a remote attacker to execute arbitrary code on a vulnerable system.I. DescriptionThe Mozilla web browser and related Mozilla products support the ability to natively display a number of image formats. Multiple integer overflow errors exist in the way that some versions of these products handle bitmap images (.bmp). These errors result in various vulnerabilities when the affected application handles overly wide bitmap files. An attacker with the ability to supply a specially crafted bitmap image to the affected application may be able to exploit these vulnerabilities. Such malicious images could be supplied remotely in a web page or in an email message.II. ImpactThe impacts of these vulnerabilities vary depending on what system the software is running on. In some cases, a remote attacker may be able to execute arbitrary code with the privileges of the user running an affected program. In other cases, an attacker may be able to cause the affected program to crash.III. SolutionUpgrade to a fixed version of the affected softwareThe Mozilla Project has released new versions of the affected software that include patches for this vulnerability. Please see the Systems Affected section of this document for more information.
References
Information about this issue was originally published by the Mozilla Project. The Mozilla Project, in turn, credits Gaël Delalleau with the discovery and reporting of this issue. This document was written by Chad R Dougherty.
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