- Vulnerability/
- RHSA-2021:4933
RHSA-2021:4933: 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 | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-debuginfo | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-debuginfo | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-devel | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-devel | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-pkcs11-devel | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-pkcs11-devel | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-sysinit | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-tools | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-debuginfo | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-devel | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-pkcs11-devel | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-sysinit | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
| redhat/nss-tools | <3.36.0-10.2.el7_6 | 3.36.0-10.2.el7_6 |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:4933?
The severity of RHSA-2021:4933 is classified as important.
How do I fix RHSA-2021:4933?
To fix RHSA-2021:4933, you should update to the fixed packages available in the remedy version 3.36.0-10.2.el7_6.
What systems are affected by RHSA-2021:4933?
RHSA-2021:4933 affects various versions of the Network Security Services (NSS) library on Red Hat systems.
What are the risks associated with CVE-2021-43527 in RHSA-2021:4933?
CVE-2021-43527 presents a risk of memory corruption that could potentially lead to crashes or execution of arbitrary code.
Is there a specific version of NSS I need to update to for RHSA-2021:4933?
Yes, you need to update to Network Security Services version 3.36.0-10.2.el7_6 to mitigate the vulnerabilities.
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