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Vulnerability & Exploit Database

Vulnerabilities and exploits collected over reliable resources for security professionals and researchers to review

Amazon Linux AMI 2: CVE-2020-26961: Security patch for thunderbird (ALAS-2021-1586)

Severity:
4
CVSS:
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published:
12/09/2020
Created:
01/09/2020
Added:
01/08/2020
Modified:
01/08/2020

Description:

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding attack. 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

Reference(s)

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