What is the severity of CVE-2021-29956?

The severity of CVE-2021-29956 is considered high due to the exposure of unencrypted OpenPGP secret keys.

How do I fix CVE-2021-29956?

To fix CVE-2021-29956, update to Mozilla Thunderbird version 78.10.2 or later.

What are the risks associated with CVE-2021-29956?

The risks of CVE-2021-29956 include unauthorized access to sensitive cryptographic keys stored unencrypted on local disks.

Who is affected by CVE-2021-29956?

Users of Mozilla Thunderbird versions 78.8.1 through 78.10.1 who imported OpenPGP secret keys are affected by CVE-2021-29956.

What has changed in Thunderbird with the fix for CVE-2021-29956?

The fix for CVE-2021-29956 re-enables the master password protection mechanism for newly imported OpenPGP keys.

Vulnerability/
CVE-2021-29956

medium

4.3

CWE

312

17/5/2021

24/6/2021

3/8/2024

CVE-2021-29956

First published: Mon May 17 2021(Updated: )

OpenPGP secret keys that were imported using Thunderbird version 78.8.1 up to version 78.10.1 were stored unencrypted on the user's local disk. The master password protection was inactive for those keys. Version 78.10.2 will restore the protection mechanism for newly imported keys, and will automatically protect keys that had been imported using affected Thunderbird versions.

Credit: security@mozilla.org

Affected Software	Affected Version	How to fix
Mozilla Thunderbird	<78.10.2	78.10.2
	<78.10.2	78.10.2
Mozilla Thunderbird	>=78.8.1<=78.10.1

Remedy

https://bugzilla.mozilla.org/show_bug.cgi?id=1710290

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

MFSA2021-22

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

What is the severity of CVE-2021-29956?
The severity of CVE-2021-29956 is considered high due to the exposure of unencrypted OpenPGP secret keys.
How do I fix CVE-2021-29956?
To fix CVE-2021-29956, update to Mozilla Thunderbird version 78.10.2 or later.
What are the risks associated with CVE-2021-29956?
The risks of CVE-2021-29956 include unauthorized access to sensitive cryptographic keys stored unencrypted on local disks.
Who is affected by CVE-2021-29956?
Users of Mozilla Thunderbird versions 78.8.1 through 78.10.1 who imported OpenPGP secret keys are affected by CVE-2021-29956.
What has changed in Thunderbird with the fix for CVE-2021-29956?
The fix for CVE-2021-29956 re-enables the master password protection mechanism for newly imported OpenPGP keys.

collector/nvd-index
collector/mozilla-advisory
vendor/mozilla
vendor/thunderbird
agent/type
agent/first-publish-date
agent/softwarecombine
agent/weakness
agent/references
agent/author
agent/remedy
agent/severity
source/Mozilla
agent/software-canonical-lookup
agent/description
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/event
agent/trending
agent/tags
agent/source
canonical/mozilla thunderbird
version/mozilla thunderbird/78.8.1
version/mozilla thunderbird/78.10.1

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