- Vulnerability/
- RHSA-2021:4954
RHSA-2021:4954: Critical: thunderbird security update
First published: Mon Dec 06 2021(Updated: )
Mozilla Thunderbird is a standalone mail and newsgroup client.<br>Security Fix(es):<br><li> nss: Memory corruption in decodeECorDsaSignature with DSA signatures (and RSA-PSS) (CVE-2021-43527)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/thunderbird | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird-debuginfo | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird-debugsource | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird-debuginfo | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird-debugsource | <91.3.0-3.el8_2 | 91.3.0-3.el8_2 |
| redhat/thunderbird | <91.3.0-3.el8_2.aa | 91.3.0-3.el8_2.aa |
| redhat/thunderbird-debuginfo | <91.3.0-3.el8_2.aa | 91.3.0-3.el8_2.aa |
| redhat/thunderbird-debugsource | <91.3.0-3.el8_2.aa | 91.3.0-3.el8_2.aa |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:4954?
The vulnerability RHSA-2021:4954 is classified as critical.
How do I fix RHSA-2021:4954?
To fix RHSA-2021:4954, update to version 91.3.0-3.el8_2 of the Thunderbird package.
Which software is affected by RHSA-2021:4954?
RHSA-2021:4954 affects the Thunderbird mail client and its associated debuginfo packages.
What type of vulnerability is addressed in RHSA-2021:4954?
RHSA-2021:4954 addresses a memory corruption vulnerability in the decoding of DSA signatures.
What is the CVE associated with RHSA-2021:4954?
The CVE associated with RHSA-2021:4954 is CVE-2021-43527.
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