This security update fixes nine vulnerabilities and addresses a number of stability issues. The most critical security fixes include:

• Patches to unsafe library loading vulnerabilities.
• A resolution to a dangling pointer vulnerability in LookupGetterOrSetter.
• A repair to a use-after-free error in nsBarProp.
• A fix to a buffer overflow and memory corruption using document.write.
• Patches to miscellaneous memory safety hazards.
• A repair to prevent cross-site information disclosure through modal calls.
• A fix to a Cross-Site Scripting (XSS) vulnerability in gopher parser when parsing hrefs.

For additional details and the complete list of bugs fixed in this release, see these notes.