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2.6

Mozilla browsers can be forced to freeze by malicious script

CVE-2004-0478 · published 22 years ago
Summary

All versions of Mozilla browsers may be tricked by a specially crafted web page that runs a looping script, causing the browser to use a lot of CPU and memory. This can make the browser slow, unresponsive, or crash, affecting anyone who views the page. The fix is to update the browser to the latest version from Mozilla and avoid loading content from untrusted sites.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
mozilla mozilla All versions
cpe:2.3:a:mozilla:mozilla:*:*:*:*:*:*:*:*
Original advisory text
Unknown versions of Mozilla allow remote attackers to cause a denial of service (high CPU/RAM consumption) using Javascript with an infinite loop that continues to add input to a form, possibly as...
Unknown versions of Mozilla allow remote attackers to cause a denial of service (high CPU/RAM consumption) using Javascript with an infinite loop that continues to add input to a form, possibly as the result of inserting control characters, as demonstrated using an embedded ctrl-U.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
2.6 Low
Exploitation
1% chance of attack within 30 days
Type
CWE-399Resource Management Errors
Timeline
Published7 Jul 2004
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2004-0478 · NVD
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