A use-after-free was discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service or execute arbitrary code.
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"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3609-1.json"
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"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3609-1.json"