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redhatRedHatRHSA-2023:7483
HistoryNov 24, 2023 - 4:48 p.m.

(RHSA-2023:7483) Important: Red Hat Single Sign-On 7.6.6 security update on RHEL 8

2023-11-2416:48:49
access.redhat.com
13
red hat single sign-on
rhel 8
security update
ddos
ldap injection

CVSS3

7.5

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

AI Score

9.6

Confidence

High

EPSS

0.708

Percentile

98.1%

Red Hat Single Sign-On 7.6 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 7.6.6 on RHEL 8 serves as a replacement for Red Hat Single Sign-On 7.6.5, and includes bug fixes and enhancements.

Security Fix(es):

  • undertow: HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
  • netty-codec-http2: HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
  • bouncycastle: potential blind LDAP injection attack using a self-signed certificate (CVE-2023-33201)
  • keycloak: impersonation and lockout possible through incorrect handling of email trust (CVE-2023-0105)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

CVSS3

7.5

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

AI Score

9.6

Confidence

High

EPSS

0.708

Percentile

98.1%