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Red Hat Enterprise Linux 7: RHSA-2021-2658-01 Important: Linuxptp Threat

red hat
Calendar Grey July 6, 2021
Dist Redhat Esm H88
Crucial linuxptp enhancement for Red Hat Enterprise Linux 7 addressing security vulnerabilities and improving safety measures.
An update for linuxptp 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 linuxptp packages provide Precision Time Protocol (PTP) implementation for Linux according to IEEE standard 1588 for Linux. The dual design goals are to provide a robust implementation of the standard and to use the most relevant and modern Application Programming Interfaces (API) offered by the Linux kernel.
Security Fix(es):
* linuxptp: missing length check of forwarded messages (CVE-2021-3570)
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 critical threat security impact red hat enterprise important update linuxptp precision time protocol

References

https://access.redhat.com/security/cve/CVE-2021-3570 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: linuxptp-2.0-2.el7_9.1.src.rpm
x86_64: linuxptp-2.0-2.el7_9.1.x86_64.rpm linuxptp-debuginfo-2.0-2.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: linuxptp-2.0-2.el7_9.1.src.rpm
x86_64: linuxptp-2.0-2.el7_9.1.x86_64.rpm linuxptp-debuginfo-2.0-2.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: linuxptp-2.0-2.el7_9.1.src.rpm
ppc64: linuxptp-2.0-2.el7_9.1.ppc64.rpm linuxptp-debuginfo-2.0-2.el7_9.1.ppc64.rpm
ppc64le: linuxptp-2.0-2.el7_9.1.ppc64le.rpm linuxptp-debuginfo-2.0-2.el7_9.1.ppc64le.rpm
s390x: linuxptp-2.0-2.el7_9.1.s390x.rpm linuxptp-debuginfo-2.0-2.el7_9.1.s390x.rpm
x86_64: linuxptp-2.0-2.el7_9.1.x86_64.rpm linuxptp-debuginfo-2.0-2.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: linuxptp-2.0-2.el7_9.1.src.rpm
x86_64: linuxptp-2.0-2.el7_9.1.x86_64.rpm linuxptp-debuginfo-2.0-2.el7_9.1.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-2021:2658-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:2658
Issue date: 2021-07-06

Topic

An update for linuxptp 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 critical threat security impact red hat enterprise important update linuxptp precision time protocol

Relevant Releases Architectures

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

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

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

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

Bugs Fixed

1966240 - CVE-2021-3570 linuxptp: missing length check of forwarded messages

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