What it is about

Jackson ist eine quelloffene Bibliothek zur JSON-Verarbeitung in Java. Ein Angreifer kann mehrere Schwachstellen in FasterXML Jackson ausnutzen, um Daten zu manipulieren und Sicherheitsvorkehrungen zu umgehen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

• Daten zu manipulieren
• Sicherheitsvorkehrungen zu umgehen

Am I affected?

Affected according to the BSI:

• Red Hat Enterprise Linux
• IBM Operational Decision Manager
• IBM SPSS Modeler
• IBM MQ Operator
• IBM Integration Bus
• IBM Tivoli Network Manager
• IBM Business Automation Workflow
• SUSE Linux
• FasterXML Jackson <2.21.4
• FasterXML Jackson <3.1.4
• FasterXML Jackson <2.18.8
• FasterXML Jackson <2.18.9

and 8 more

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

• FasterXML Jackson 2.21.4
• FasterXML Jackson 3.1.4
• FasterXML Jackson 2.18.8
• FasterXML Jackson 2.18.9
• FasterXML Jackson 2.21.5
• FasterXML Jackson 2.22.1
• FasterXML Jackson 3.1.5
• FasterXML Jackson 3.2.1
• Dell Secure Connect Gateway 5.36.00.16
• Open Source Keycloak 26.8.0

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.