CVE-2021-3597 undertow Race Condition vulnerability

What is CVE-2021-3597?

CVE-2021-3597 is a medium-severity denial of service vulnerability in Netapp Active Iq Unified Manager, published on 24 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A flaw was found in undertow. The HTTP2SourceChannel fails to write the final frame under some circumstances, resulting in a denial of service. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.35.SP1, prior to 2.2.6.SP1, prior to 2.2.7.SP1, prior to 2.0.36.SP1, prior to 2.2.9.Final and prior to 2.0.39.Final.

Weakness: CWE-362

Which versions are affected by CVE-2021-3597?

4 open source packages ship an affected version, including io.undertow:undertow-core. It affects 8 products.

Products include Netapp Active Iq Unified Manager, Netapp Oncommand Insight, Netapp Oncommand Workflow Automation, Redhat Fuse, Redhat Jboss Enterprise Application Platform, Redhat Openshift Application Runtimes and 2 more.

How do I fix CVE-2021-3597?

Upgrade io.undertow:undertow-core to a fixed version for your release line: 2.0.39.Final or 2.2.9.Final.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-3597 being exploited?

There is no known exploitation of CVE-2021-3597 in the wild and no public exploit code.

Other vulnerabilities in Netapp Active Iq Unified Manager

• CVE-2022-31692 Spring Security authorization rules can be bypassed via forward or include dispatcher types Critical 9.8
• CVE-2022-2526 Use after free in systemd-resolved Critical 9.8
• CVE-2022-22978 Authorization bypass in Spring Security Critical 9.8
• CVE-2021-22931 Code injection in Node Critical 9.8
• CVE-2018-2938 Code injection in Java Critical 9.0

All Netapp Active Iq Unified Manager vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2021-3597, GHSA-mfhv-gwf8-4m88, UBUNTU-CVE-2021-3597.