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Alpine Linux: CVE-2020-26974: Out-of-bounds Write

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Alpine Linux: CVE-2020-26974: Out-of-bounds Write

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
01/07/2021
Created
01/20/2021
Added
01/19/2021
Modified
10/02/2024

Description

When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Solution(s)

  • alpine-linux-upgrade-firefox-esr
  • alpine-linux-upgrade-firefox
  • alpine-linux-upgrade-thunderbird

References

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