Upstream information

CVE-2020-26970 at MITRE

Description

When reading SMTP server status codes, Thunderbird writes an integer value to a position on the stack that is intended to contain just one byte. Depending on processor architecture and stack layout, this leads to stack corruption that may be exploitable. This vulnerability affects Thunderbird < 78.5.1.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having critical severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 9.3
Vector AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 8.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1179530 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Workstation Extension 15 SP1
  • MozillaThunderbird >= 78.5.1-3.110.2
  • MozillaThunderbird-translations-common >= 78.5.1-3.110.2
  • MozillaThunderbird-translations-other >= 78.5.1-3.110.2
Patchnames:
SUSE-SLE-Product-WE-15-SP1-2020-3642
SUSE Linux Enterprise Workstation Extension 15 SP2
  • MozillaThunderbird >= 78.6.0-8.3.1
  • MozillaThunderbird-translations-common >= 78.6.0-8.3.1
  • MozillaThunderbird-translations-other >= 78.6.0-8.3.1
Patchnames:
SUSE-SLE-Product-WE-15-SP2-2020-3935
openSUSE Tumbleweed
  • MozillaThunderbird >= 91.1.1-1.1
  • MozillaThunderbird-translations-common >= 91.1.1-1.1
  • MozillaThunderbird-translations-other >= 91.1.1-1.1
Patchnames:
openSUSE Tumbleweed GA MozillaThunderbird-91.1.1-1.1


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Workstation Extension 15 SP1 MozillaThunderbird Released
SUSE Linux Enterprise Workstation Extension 15 SP2 MozillaThunderbird In progress
SUSE Linux Enterprise Workstation Extension 15 SP3 MozillaThunderbird In progress