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Debian: CVE-2020-15678: firefox-esr, thunderbird -- security update

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Debian: CVE-2020-15678: firefox-esr, thunderbird -- security update

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
09/30/2020
Created
09/30/2020
Added
09/30/2020
Modified
10/19/2020

Description

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.

Solution(s)

  • debian-upgrade-firefox-esr
  • debian-upgrade-thunderbird

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