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Red Hat Enterprise Linux 9: RHSA-2022-8400-01 Moderate: libtirpc DoS Fix

red hat
Calendar Grey November 15, 2022
Dist Redhat Esm H88
A patch for libtirpc enhances safety against denial-of-service threats for Red Hat Enterprise Linux 9, assigned a moderate severity level.
An update for libtirpc is now available for Red Hat Enterprise Linux 9

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 libtirpc packages contain SunLib's implementation of transport-independent remote procedure call (TI-RPC) documentation, which includes a library required by programs in the nfs-utils and rpcbind packages.
Security Fix(es):
* libtirpc: DoS vulnerability with lots of connections (CVE-2021-46828)
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 9.1 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat DoS Linux update libtirpc

References

https://access.redhat.com/security/cve/CVE-2021-46828 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.1_release_notes/index

Package List

Red Hat Enterprise Linux BaseOS (v. 9):
Source: libtirpc-1.3.3-0.el9.src.rpm
aarch64: libtirpc-1.3.3-0.el9.aarch64.rpm libtirpc-debuginfo-1.3.3-0.el9.aarch64.rpm libtirpc-debugsource-1.3.3-0.el9.aarch64.rpm
ppc64le: libtirpc-1.3.3-0.el9.ppc64le.rpm libtirpc-debuginfo-1.3.3-0.el9.ppc64le.rpm libtirpc-debugsource-1.3.3-0.el9.ppc64le.rpm
s390x: libtirpc-1.3.3-0.el9.s390x.rpm libtirpc-debuginfo-1.3.3-0.el9.s390x.rpm libtirpc-debugsource-1.3.3-0.el9.s390x.rpm
x86_64: libtirpc-1.3.3-0.el9.i686.rpm libtirpc-1.3.3-0.el9.x86_64.rpm libtirpc-debuginfo-1.3.3-0.el9.i686.rpm libtirpc-debuginfo-1.3.3-0.el9.x86_64.rpm libtirpc-debugsource-1.3.3-0.el9.i686.rpm libtirpc-debugsource-1.3.3-0.el9.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 9):
aarch64: libtirpc-debuginfo-1.3.3-0.el9.aarch64.rpm libtirpc-debugsource-1.3.3-0.el9.aarch64.rpm libtirpc-devel-1.3.3-0.el9.aarch64.rpm
ppc64le: libtirpc-debuginfo-1.3.3-0.el9.ppc64le.rpm libtirpc-debugsource-1.3.3-0.el9.ppc64le.rpm libtirpc-devel-1.3.3-0.el9.ppc64le.rpm
s390x: libtirpc-debuginfo-1.3.3-0.el9.s390x.rpm libtirpc-debugsource-1.3.3-0.el9.s390x.rpm libtirpc-devel-1.3.3-0.el9.s390x.rpm
x86_64: libtirpc-debuginfo-1.3.3-0.el9.i686.rpm libtirpc-debuginfo-1.3.3-0.el9.x86_64.rpm libtirpc-debugsource-1.3.3-0.el9.i686.rpm

Read the Full Advisory


Advisory ID: RHSA-2022:8400-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:8400
Issue date: 2022-11-15

Topic

An update for libtirpc is now available for Red Hat Enterprise Linux 9.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 moderate Red Hat DoS Linux update libtirpc

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 9) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 9) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2109352 - CVE-2021-46828 libtirpc: DoS vulnerability with lots of connections

2118157 - CVE-2021-46828 libtirpc: Upgrade to the latest upstream release libtirpc-1.3.3 [rhel-9.1.0]

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