Flaws in Mozilla's Handling of Security Certificates Discovered and Fixed

Tuesday July 27th, 2004

CNET is reporting that two new flaws in the way Mozilla handles security certificates have been discovered. The more serious vulnerability allows a site to appear to have a security certificate when it does not (bug 253121). The other hole makes it possible for an attacker to overwrite the root certificate authority certificates, causing an error message to appear whenever the user tries to access a (genuine) secure site (bug 249004). Both bugs have now been fixed, but updated end-user releases of Mozilla products are not yet available.

#5 no xpi

by danielwang <>

Tuesday July 27th, 2004 11:32 PM

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If there's any patch, it won't be an XPI. The fix to shell: vulnerability only involves a preference change. These two are deeper and involve backend code change. AFIAK, XPIs cannot fix these bugs.