SB2010102701 - Remote code execution in Mozilla Firefox

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2010-3765)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error within nsCSSFrameConstructor::ContentAppended. A remote attacker can create a specially crafted web page containing specially crafted document.write and appendChild calls, cause heap-based buffer overflow and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of this vulnerability may allow an attacker to compromise vulnerable system.

Note: this vulnerability is being actively exploited.

Remediation

Install update from vendor's website.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=607222
• https://www.mozilla.org/en-US/security/advisories/mfsa2010-73/