Red Hat Security Advisory: Red Hat Single Sign-On 7.5.2 security update
🔗 CVE IDs covered (1)
📋 Description
CVE-2021-45105 — log4j-core: DoS in log4j 2.x with Thread Context Map (MDC) input data contains a recursive lookup and context lookup pattern
🎯 Affected products1
- Red Hat Single Sign-On 7
✅ Remediation
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). Workaround: For Log4j 2 versions up to and including 2.16.0, this flaw can be mitigated by: - In PatternLayout in the Log4j logging configuration, replace Context Lookups like ${ctx:loginId} or $${ctx:loginId} with Thread Context Map patterns (%X, %mdc, or %MDC) like %X{loginId}. - Otherwise, in the Log4j logging configuration, remove references to Context Lookups like ${ctx:loginId} or $${ctx:loginId} where they originate from sources external to the application such as HTTP headers or user input.
🔗 References (6)
- selfhttps://access.redhat.com/errata/RHSA-2022:1469
- externalhttps://access.redhat.com/security/updates/classification/#low
- externalhttps://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=core.service.rhsso&downloadType=patches&version=7.5
- externalhttps://access.redhat.com/documentation/en-us/red_hat_single_sign-on/7.5/html/release_notes/index
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2034067
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2022/rhsa-2022_1469.json