Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.3077
Red Hat Single Sign-On 7.4.9 security update
15 September 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Red Hat Single Sign-On 7.4.9
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Provide Misleading Information -- Existing Account
Unauthorised Access -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-29425 CVE-2021-28170 CVE-2021-3690
CVE-2021-3644 CVE-2021-3637 CVE-2021-3632
CVE-2021-3597 CVE-2021-3513 CVE-2020-35509
CVE-2020-28491
Reference: ESB-2021.3051
ESB-2021.2814
ESB-2021.2323
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:3534
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Red Hat Security Advisory
Synopsis: Moderate: Red Hat Single Sign-On 7.4.9 security update
Advisory ID: RHSA-2021:3534-01
Product: Red Hat Single Sign-On
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3534
Issue date: 2021-09-14
CVE Names: CVE-2020-28491 CVE-2020-35509 CVE-2021-3513
CVE-2021-3597 CVE-2021-3632 CVE-2021-3637
CVE-2021-3644 CVE-2021-3690 CVE-2021-28170
CVE-2021-29425
=====================================================================
1. Summary:
A security update is now available for Red Hat Single Sign-On 7.4 from the
Customer Portal.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Description:
Red Hat Single Sign-On 7.4 is a standalone server, based on the Keycloak
project, that provides authentication and standards-based single sign-on
capabilities for web and mobile applications.
This release of Red Hat Single Sign-On 7.4.9 serves as a replacement for
Red Hat Single Sign-On 7.4.8, and includes bug fixes and enhancements,
which are documented in the Release Notes document linked to in the
References.
Security Fix(es):
* undertow: buffer leak on incoming websocket PONG message may lead to DoS
(CVE-2021-3690)
* jackson-dataformat-cbor: Unchecked allocation of byte buffer can cause a
java.lang.OutOfMemoryError exception (CVE-2020-28491)
* keycloak: Brute force attack is possible even after the account lockout
(CVE-2021-3513)
* undertow: HTTP2SourceChannel fails to write final frame under some
circumstances may lead to DoS (CVE-2021-3597)
* keycloak: Anyone can register a new device when there is no device
registered for passwordless login (CVE-2021-3632)
* keycloak-model-infinispan: authenticationSessions map in
RootAuthenticationSessionEntity grows boundlessly could lead to a DoS
attack (CVE-2021-3637)
* jakarta-el: ELParserTokenManager enables invalid EL expressions to be
evaluate (CVE-2021-28170)
* apache-commons-io: Limited path traversal in Apache Commons IO 2.2 to 2.6
(CVE-2021-29425)
* keycloak: X509 Direct Grant Auth does not verify certificate timestamp
validity (CVE-2020-35509)
* wildfly-core: Invalid Sensitivity Classification of Vault Expression
(CVE-2021-3644)
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.
3. Solution:
Before applying the update, back up your existing installation, including
all applications, configuration files, databases and database settings, and
so on.
The References section of this erratum contains a download link (you must
log in to download the update).
4. Bugs fixed (https://bugzilla.redhat.com/):
1912427 - CVE-2020-35509 keycloak: X509 Direct Grant Auth does not verify certificate timestamp validity
1930423 - CVE-2020-28491 jackson-dataformat-cbor: Unchecked allocation of byte buffer can cause a java.lang.OutOfMemoryError exception
1948752 - CVE-2021-29425 apache-commons-io: Limited path traversal in Apache Commons IO 2.2 to 2.6
1953439 - CVE-2021-3513 keycloak: Brute force attack is possible even after the account lockout
1965497 - CVE-2021-28170 jakarta-el: ELParserTokenManager enables invalid EL expressions to be evaluate
1970930 - CVE-2021-3597 undertow: HTTP2SourceChannel fails to write final frame under some circumstances may lead to DoS
1976052 - CVE-2021-3644 wildfly-core: Invalid Sensitivity Classification of Vault Expression
1978196 - CVE-2021-3632 keycloak: Anyone can register a new device when there is no device registered for passwordless login
1979638 - CVE-2021-3637 keycloak-model-infinispan: authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly could lead to a DoS attack
1991299 - CVE-2021-3690 undertow: buffer leak on incoming websocket PONG message may lead to DoS
5. References:
https://access.redhat.com/security/cve/CVE-2020-28491
https://access.redhat.com/security/cve/CVE-2020-35509
https://access.redhat.com/security/cve/CVE-2021-3513
https://access.redhat.com/security/cve/CVE-2021-3597
https://access.redhat.com/security/cve/CVE-2021-3632
https://access.redhat.com/security/cve/CVE-2021-3637
https://access.redhat.com/security/cve/CVE-2021-3644
https://access.redhat.com/security/cve/CVE-2021-3690
https://access.redhat.com/security/cve/CVE-2021-28170
https://access.redhat.com/security/cve/CVE-2021-29425
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=securityPatches&version=7.4
https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.4/
https://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.4/html/release_notes/index
6. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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