A maliciously crafted favicon could have led to an out of memory crash. This vulnerability affects Firefox < 113.
USN-6074-1 fixed vulnerabilities and USN-6074-2 fixed minor regressions in Firefox. The update introduced several minor regressions. This update fixes the problem. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. Irvan Kurniawan discovered that Firefox did not properly manage memory when using RLBox Expat driver. An attacker could potentially exploits this issue to cause a denial of service. Anne van Kesteren discovered that Firefox did not properly validate the import call in service workers. An attacker could potentially exploits this to obtain sensitive information. Sam Ezeh discovered that Firefox did not properly handle certain favicon image files. If a user were tricked into opening a malicious favicon file, an attacker could cause a denial of service.
