Updated thunderbird packages fix security vulnerability

2020-12-0522:46:49

Gentoo Foundation

advisories.mageia.org

thunderbird

stack corruption

vulnerability

packages

smtp

server

cve-2020-26970

unix

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.002

Percentile

55.8%

JSON

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 (CVE-2020-26970).

OSVersionArchitecturePackageVersionFilename
Mageia7noarchthunderbird< 78.5.1-1thunderbird-78.5.1-1.mga7
Mageia7noarchthunderbird-l10n< 78.5.1-1thunderbird-l10n-78.5.1-1.mga7
Mageia7noarchrootcerts< 20201201.00-1rootcerts-20201201.00-1.mga7

OS	Version	Architecture	Package	Version	Filename
Mageia	7	noarch	thunderbird	< 78.5.1-1	thunderbird-78.5.1-1.mga7
Mageia	7	noarch	thunderbird-l10n	< 78.5.1-1	thunderbird-l10n-78.5.1-1.mga7
Mageia	7	noarch	rootcerts	< 20201201.00-1	rootcerts-20201201.00-1.mga7