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Red Hat Enterprise Linux 8 RHSA-2021-4321 Moderate: linuxptp Bug Fix

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Routine security patch for linuxptp on Red Hat Enterprise Linux 8 resolves significant vulnerabilities and introduces important enhancements.
An update for linuxptp is now available for Red Hat Enterprise Linux 8

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.
The following packages have been upgraded to a later upstream version: linuxptp (3.1.1). (BZ#1895005)
Security Fix(es):
* linuxptp: wrong length of one-step follow-up in transparent clock (CVE-2021-3571)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory security update bug fix Red Hat Enterprise Linux moderate impact software enhancement linuxptp

References

https://access.redhat.com/security/cve/CVE-2021-3571 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.5_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: linuxptp-3.1.1-1.el8.src.rpm
aarch64: linuxptp-3.1.1-1.el8.aarch64.rpm linuxptp-debuginfo-3.1.1-1.el8.aarch64.rpm linuxptp-debugsource-3.1.1-1.el8.aarch64.rpm
ppc64le: linuxptp-3.1.1-1.el8.ppc64le.rpm linuxptp-debuginfo-3.1.1-1.el8.ppc64le.rpm linuxptp-debugsource-3.1.1-1.el8.ppc64le.rpm
s390x: linuxptp-3.1.1-1.el8.s390x.rpm linuxptp-debuginfo-3.1.1-1.el8.s390x.rpm linuxptp-debugsource-3.1.1-1.el8.s390x.rpm
x86_64: linuxptp-3.1.1-1.el8.x86_64.rpm linuxptp-debuginfo-3.1.1-1.el8.x86_64.rpm linuxptp-debugsource-3.1.1-1.el8.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


Advisory ID: RHSA-2021:4321-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4321
Issue date: 2021-11-09

Topic

An update for linuxptp is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update bug fix Red Hat Enterprise Linux moderate impact software enhancement linuxptp

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1895005 - Rebase linuxptp to 3.1

1966241 - CVE-2021-3571 linuxptp: wrong length of one-step follow-up in transparent clock

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