RHSA-2024:0800 - Security Advisory

Topic

New Red Hat Single Sign-On 7.6.7 packages are now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

Description

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 7.6.7 on RHEL 9 serves as a replacement for Red Hat Single Sign-On 7.6.6, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• redirect_uri validation logic that allows for a bypass of otherwise explicitly allowed hosts (CVE-2023-6291)
• guava: insecure temporary directory creation (CVE-2023-2976)
• jetty-server: OutOfMemoryError for large multipart without filename read via request.getParameter() (CVE-2023-26048)
• jetty-server: Cookie parsing of quoted values can exfiltrate values from other cookies (CVE-2023-26049)
• reflected XSS via wildcard in OIDC redirect_uri (CVE-2023-6134)
• open redirect via "form_post.jwt" JARM response mode (CVE-2023-6927)
• santuario: Private Key disclosure in debug-log output (CVE-2023-44483)
• Log Injection during WebAuthn authentication or registration (CVE-2023-6484)

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.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Single Sign-On 7.6 for RHEL 9 x86_64

Fixes

• BZ - 2215229 - CVE-2023-2976 guava: insecure temporary directory creation
• BZ - 2236340 - CVE-2023-26048 jetty-server: OutOfMemoryError for large multipart without filename read via request.getParameter()
• BZ - 2236341 - CVE-2023-26049 jetty-server: Cookie parsing of quoted values can exfiltrate values from other cookies
• BZ - 2246070 - CVE-2023-44483 santuario: Private Key disclosure in debug-log output
• BZ - 2248423 - CVE-2023-6484 keycloak: Log Injection during WebAuthn authentication or registration
• BZ - 2249673 - CVE-2023-6134 keycloak: reflected XSS via wildcard in OIDC redirect_uri
• BZ - 2251407 - CVE-2023-6291 keycloak: redirect_uri validation bypass
• BZ - 2255027 - CVE-2023-6927 keycloak: open redirect via "form_post.jwt" JARM response mode

CVEs

• CVE-2023-2976
• CVE-2023-6134
• CVE-2023-6291
• CVE-2023-6484
• CVE-2023-6927
• CVE-2023-26048
• CVE-2023-26049
• CVE-2023-44483

References

• https://access.redhat.com/security/updates/classification/#important