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Red Hat 8: RHSA-2021-4432 Moderate: Bluez Impersonation Attack

red hat
Calendar Grey November 9, 2021
Dist Redhat Esm H88
Timely bluez security patch for Red Hat Enterprise Linux 8 addressing impersonation exploit issue CVE-2020-26558.
An update for bluez 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 bluez packages contain the following utilities for use in Bluetooth applications: hcitool, hciattach, hciconfig, bluetoothd, l2ping, start scripts (Red Hat), and pcmcia configuration files.
Security Fix(es):
* bluez: Passkey Entry protocol of the Bluetooth Core is vulnerable to an impersonation attack (CVE-2020-26558)
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 Red Hat moderate threat Bluetooth security impersonation attack bluez

References

https://access.redhat.com/security/cve/CVE-2020-26558 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):
aarch64: bluez-cups-5.56-1.el8.aarch64.rpm bluez-cups-debuginfo-5.56-1.el8.aarch64.rpm bluez-debuginfo-5.56-1.el8.aarch64.rpm bluez-debugsource-5.56-1.el8.aarch64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.aarch64.rpm bluez-libs-debuginfo-5.56-1.el8.aarch64.rpm bluez-obexd-debuginfo-5.56-1.el8.aarch64.rpm
ppc64le: bluez-cups-5.56-1.el8.ppc64le.rpm bluez-cups-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debuginfo-5.56-1.el8.ppc64le.rpm bluez-debugsource-5.56-1.el8.ppc64le.rpm bluez-hid2hci-debuginfo-5.56-1.el8.ppc64le.rpm bluez-libs-debuginfo-5.56-1.el8.ppc64le.rpm bluez-obexd-debuginfo-5.56-1.el8.ppc64le.rpm
s390x: bluez-cups-5.56-1.el8.s390x.rpm bluez-cups-debuginfo-5.56-1.el8.s390x.rpm bluez-debuginfo-5.56-1.el8.s390x.rpm bluez-debugsource-5.56-1.el8.s390x.rpm bluez-hid2hci-debuginfo-5.56-1.el8.s390x.rpm bluez-libs-debuginfo-5.56-1.el8.s390x.rpm bluez-obexd-debuginfo-5.56-1.el8.s390x.rpm
x86_64: bluez-cups-5.56-1.el8.x86_64.rpm bluez-cups-debuginfo-5.56-1.el8.x86_64.rpm bluez-debuginfo-5.56-1.el8.x86_64.rpm bluez-debugsource-5.56-1.el8.x86_64.rpm bluez-hid2hci-debuginfo-5.56-1.el8.x86_64.rpm bluez-libs-debuginfo-5.56-1.el8.x86_64.rpm bluez-obexd-debuginfo-5.56-1.el8.x86_64.rpm
Red Hat Enterprise Linux BaseOS (v. 8):
Source:

Read the Full Advisory


Advisory ID: RHSA-2021:4432-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4432
Issue date: 2021-11-09

Topic

An update for bluez 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 Red Hat moderate threat Bluetooth security impersonation attack bluez

Relevant Releases Architectures

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

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

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

Bugs Fixed

1918602 - CVE-2020-26558 bluez: Passkey Entry protocol of the Bluetooth Core is vulnerable to an impersonation attack

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