- Vulnerability/
- RHSA-2021:4946
RHSA-2021:4946: Critical: nss security update
First published: Mon Dec 06 2021(Updated: )
Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications.<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/nss | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-debuginfo | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-debuginfo | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-devel | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-devel | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-pkcs11-devel | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-pkcs11-devel | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-sysinit | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-tools | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-debuginfo | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-devel | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-pkcs11-devel | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-sysinit | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
| redhat/nss-tools | <3.44.0-8.el7_7 | 3.44.0-8.el7_7 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:4946?
The severity of RHSA-2021:4946 is classified as critical.
How do I fix RHSA-2021:4946?
To resolve RHSA-2021:4946, you need to update the affected NSS packages to version 3.44.0-8.el7_7 or later.
Which versions of NSS are affected by RHSA-2021:4946?
Versions of NSS prior to 3.44.0-8.el7_7 are affected by RHSA-2021:4946.
What vulnerability is addressed in RHSA-2021:4946?
RHSA-2021:4946 addresses a memory corruption vulnerability in the decodeECorDsaSignature function with DSA signatures.
Is there a need for a restart after applying the fix for RHSA-2021:4946?
A restart may be required after applying the fix for RHSA-2021:4946 to ensure that all services using NSS are updated.
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