RHSA-2021:4933: Critical: nss security update

Published Dec 6, 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

16 affected componentsFixes available
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

Remediation

Event History

Apr 13, 2024
Advisory Published
via Red Hat·01:11 AM
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Frequently Asked Questions

1

What is the severity of RHSA-2021:4933?

The severity of RHSA-2021:4933 is classified as important.

2

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.

3

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.

4

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.

5

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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