7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.003 Low
EPSS
Percentile
64.8%
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.
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.003 Low
EPSS
Percentile
64.8%