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archlinuxArchLinuxASA-202106-22
HistoryJun 09, 2021 - 12:00 a.m.

[ASA-202106-22] thunderbird: arbitrary code execution

2021-06-0900:00:00
security.archlinux.org
95

8.8 High

CVSS3

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

68.4%

Arch Linux Security Advisory ASA-202106-22

Severity: High
Date : 2021-06-09
CVE-ID : CVE-2021-29967
Package : thunderbird
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-2035

Summary

The package thunderbird before version 78.11.0-1 is vulnerable to
arbitrary code execution.

Resolution

Upgrade to 78.11.0-1.

pacman -Syu “thunderbird>=78.11.0-1”

The problem has been fixed upstream in version 78.11.0.

Workaround

None.

Description

Mozilla developers reported memory safety bugs present in Firefox 88
and Thunderbird 78.10. Some of these bugs showed evidence of memory
corruption and Mozilla presumes that with enough effort some of these
could have been exploited to run arbitrary code.

Impact

A remote attacker could execute arbitrary code using a crafted email
message.

References

https://www.mozilla.org/security/advisories/mfsa2021-23/
https://www.mozilla.org/security/advisories/mfsa2021-26/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1602862%2C1703191%2C1703760%2C1704722%2C1706041
https://security.archlinux.org/CVE-2021-29967

OSVersionArchitecturePackageVersionFilename
ArchLinuxanyanythunderbird< 78.11.0-1UNKNOWN

8.8 High

CVSS3

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

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.003 Low

EPSS

Percentile

68.4%