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Red Hat 7 RHSA-2021-2032-01 Important: slapi-nis DoS Threat

red hat
Calendar Grey May 19, 2021
Dist Redhat Esm H88
Crucial vulnerability patch and enhancement for slapi-nis on Red Hat Enterprise Linux secures operational stability.
An update for slapi-nis is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

The slapi-nis packages contain the NIS server plug-in and the Schema Compatibility plug-in for use with the 389 Directory Server.
Security Fix(es):
* slapi-nis: NULL dereference (DoS) with specially crafted Binding DN (CVE-2021-3480)
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.

Topics%20covered

Topics Covered

security advisory update red hat DoS security fix important red hat enterprise linux important update slapi-nis binding DN issue

References

https://access.redhat.com/security/cve/CVE-2021-3480 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Client Optional (v. 7):
Source: slapi-nis-0.56.5-4.el7_9.src.rpm
x86_64: slapi-nis-0.56.5-4.el7_9.x86_64.rpm slapi-nis-debuginfo-0.56.5-4.el7_9.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source: slapi-nis-0.56.5-4.el7_9.src.rpm
x86_64: slapi-nis-0.56.5-4.el7_9.x86_64.rpm slapi-nis-debuginfo-0.56.5-4.el7_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: slapi-nis-0.56.5-4.el7_9.src.rpm
ppc64le: slapi-nis-0.56.5-4.el7_9.ppc64le.rpm slapi-nis-debuginfo-0.56.5-4.el7_9.ppc64le.rpm
x86_64: slapi-nis-0.56.5-4.el7_9.x86_64.rpm slapi-nis-debuginfo-0.56.5-4.el7_9.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: slapi-nis-0.56.5-4.el7_9.src.rpm
x86_64: slapi-nis-0.56.5-4.el7_9.x86_64.rpm slapi-nis-debuginfo-0.56.5-4.el7_9.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:2032-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2032
Issue date: 2021-05-19

Topic

An update for slapi-nis is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update red hat DoS security fix important red hat enterprise linux important update slapi-nis binding DN issue

Relevant Releases Architectures

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Bugs Fixed

1944640 - CVE-2021-3480 slapi-nis: NULL dereference (DoS) with specially crafted Binding DN

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