RedHat: RHSA-2021-4321:03 Moderate: linuxptp security, bug fix,
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.
Summary
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
References
https://access.redhat.com/security/cve/CVE-2021-3571 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
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/
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.
Topic
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
