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Red Hat Enterprise Linux 8: RHSA-2021-1924-01 Low Severity SPICE DoS

red hat
Calendar Grey May 18, 2021
Dist Redhat Esm H88
Canonical releases a minor security update for QEMU, fixing a critical flaw related to data corruption in Ubuntu 20.04.
An update for spice 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

All applications using SPICE (most notably all QEMU-KVM instances using the SPICE console) must be restarted for this update to take effect.

Summary

The Simple Protocol for Independent Computing Environments (SPICE) is a remote display system built for virtual environments which allows the user to view a computing 'desktop' environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.
Security Fix(es):
* spice: Client initiated renegotiation denial of service (CVE-2021-20201)
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 8.4 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory denial of service update red hat enterprise linux spice security impact low

References

https://access.redhat.com/security/cve/CVE-2021-20201 https://access.redhat.com/security/updates/classification/#low https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: spice-0.14.3-4.el8.src.rpm
aarch64: spice-debugsource-0.14.3-4.el8.aarch64.rpm spice-server-0.14.3-4.el8.aarch64.rpm spice-server-debuginfo-0.14.3-4.el8.aarch64.rpm
x86_64: spice-debugsource-0.14.3-4.el8.i686.rpm spice-debugsource-0.14.3-4.el8.x86_64.rpm spice-server-0.14.3-4.el8.i686.rpm spice-server-0.14.3-4.el8.x86_64.rpm spice-server-debuginfo-0.14.3-4.el8.i686.rpm spice-server-debuginfo-0.14.3-4.el8.x86_64.rpm
Red Hat CodeReady Linux Builder (v. 8):
aarch64: spice-debugsource-0.14.3-4.el8.aarch64.rpm spice-server-debuginfo-0.14.3-4.el8.aarch64.rpm spice-server-devel-0.14.3-4.el8.aarch64.rpm
x86_64: spice-debugsource-0.14.3-4.el8.i686.rpm spice-debugsource-0.14.3-4.el8.x86_64.rpm spice-server-debuginfo-0.14.3-4.el8.i686.rpm spice-server-debuginfo-0.14.3-4.el8.x86_64.rpm spice-server-devel-0.14.3-4.el8.i686.rpm spice-server-devel-0.14.3-4.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/


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:1924-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1924
Issue date: 2021-05-18

Topic

An update for spice is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Low. 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 denial of service update red hat enterprise linux spice security impact low

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, x86_64

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

Bugs Fixed

1904459 - CVE-2021-20201 spice: OpenSSL(TLS/SSL) Security DoS Vulnerability - enables client-initiated renegotiation [rhel-8]

1921846 - CVE-2021-20201 spice: Client initiated renegotiation denial of service

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