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HistoryAug 26, 2020 - 9:53 a.m.

(RHSA-2020:3559) Important: firefox security update


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Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 78.2.0 ESR.

Security Fix(es):

  • Mozilla: Attacker-induced prompt for extension installation (CVE-2020-15664)

  • Mozilla: Use-After-Free when aborting an operation (CVE-2020-15669)

  • Mozilla: Integer overflow in nsJPEGEncoder::emptyOutputBuffer (CVE-2020-12422)

  • Mozilla: X-Frame-Options bypass using object or embed tags (CVE-2020-15648)

  • Mozilla: Bypassing iframe sandbox when allowing popups (CVE-2020-15653)

  • Mozilla: Type confusion for special arguments in IonMonkey (CVE-2020-15656)

  • Mozilla: WebRTC permission prompt could have been bypassed by a compromised content process (CVE-2020-12424)

  • Mozilla: Out of bound read in Date.parse() (CVE-2020-12425)

  • Mozilla: Custom cursor can overlay user interface (CVE-2020-15654)

  • Mozilla: Overriding file type when saving to disk (CVE-2020-15658)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.