PRIOn knowledge basePRION:CVE-2020-15678Design/Logic Flaw
When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.
References
lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html
bugzilla.mozilla.org/show_bug.cgi?id=1660211
lists.debian.org/debian-lts-announce/2020/10/msg00020.html
security.gentoo.org/glsa/202010-02
www.debian.org/security/2020/dsa-4770
www.mozilla.org/security/advisories/mfsa2020-42/
www.mozilla.org/security/advisories/mfsa2020-43/
www.mozilla.org/security/advisories/mfsa2020-44/
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