A vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.
Mozilla has confirmed this vulnerability and released updated software.
Indicators of Compromise
The following Mozilla products are affected:
Firefox versions prior to 25.0
Firefox ESR versions prior to 17.0.10 and 24.1
Thunderbird versions prior to 24.1
Thunderbird ESR versions prior to 17.0.10
SeaMonkey versions prior to 2.22
Technical details are not available.
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.
This vulnerability cannot be exploited through email in Thunderbird and SeaMonkey because the products have scripting disabled; however, the vulnerability could be exploited in the browser-like context of the products.
Administrators are advised to apply the appropriate updates.
Users should verify that unsolicited links are safe to follow.
Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.
Administrators are advised to monitor affected systems.
Mozilla has released a security advisory at the following link: MFSA-2013-96
Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
2013-November-01 15:47 GMT
Mozilla Firefox, Thunderbird, and SeaMonkey contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition on a targeted system. Updates are available.
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Cisco Multivendor Vulnerability Alerts respond to vulnerabilities identified in third-party vendors' products. These alerts contain information compiled from diverse sources and provide comprehensive technical descriptions, objective analytical assessments, workarounds and practical safeguards, and links to vendor advisories and patches.