Loop with Unreachable Exit Condition ('Infinite Loop') Affecting rh-sso7-keycloak-server package, versions <0:15.0.6-1.redhat_00001.1.el8sso


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
100% (100th percentile)

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  • Snyk IDSNYK-RHEL8-RHSSO7KEYCLOAKSERVER-3393131
  • published20 Dec 2021
  • disclosed18 Dec 2021

Introduced: 18 Dec 2021

CVE-2021-45105  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:8 rh-sso7-keycloak-server to version 0:15.0.6-1.redhat_00001.1.el8sso or higher.
This issue was patched in RHSA-2022:1463.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-sso7-keycloak-server package and not the rh-sso7-keycloak-server package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

CVSS Base Scores

version 3.1