CVE-2023-1973

Undertow: unrestricted request storage leads to memory exhaustion

Description

A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.66% Top 30%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 7
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 8
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8
Affected: Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:1674 vendor advisory
https://access.redhat.com/errata/RHSA-2024:1675 vendor advisory
https://access.redhat.com/errata/RHSA-2024:1676 vendor advisory
https://access.redhat.com/errata/RHSA-2024:1677 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2763 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2764 vendor advisory
https://access.redhat.com/security/cve/CVE-2023-1973 vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2185662 issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-1973?
CVE-2023-1973 has been scored as a high severity vulnerability.
How to fix CVE-2023-1973?
To fix CVE-2023-1973, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-1973 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-1973 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-1973?
CVE-2023-1973 affects Red Hat Red Hat JBoss Enterprise Application Platform 7, Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8, Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9, Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7, Red Hat Red Hat JBoss Enterprise Application Platform 8, Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8, Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9.
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