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Amazon Linux AMI 2: CVE-2020-26959: Security patch for thunderbird (ALAS-2021-1586)

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Amazon Linux AMI 2: CVE-2020-26959: Security patch for thunderbird (ALAS-2021-1586)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
12/09/2020
Created
01/09/2021
Added
01/08/2021
Modified
09/30/2022

Description

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Solution(s)

  • amazon-linux-ami-2-upgrade-thunderbird
  • amazon-linux-ami-2-upgrade-thunderbird-debuginfo

References

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