CVE-2022-2764: A flaw was found in Undertow

Routine

MEDIUM 4.9WATCHLISTMITIGATEDOWNGRADEDOWNGRADE

CVE-2022-2764 is a medium-severity flaw (CVSS 4.9) affecting integration camel k, jboss enterprise application platform, jboss fuse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in Undertow. Denial of service can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations.

Why this priority

On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-400
Published	2022-09-01
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: netapp · redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-09-01 21:15 UTCPublished CVE record published
2026-06-17 04:42 UTCUpdated Record last modified

redhat integration camel k MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy integration-camel-k || rpm -q integration-camel-k || integration-camel-k --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

redhat jboss enterprise application platform DOWNGRADE

Affected: 7.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy jboss-enterprise-application-platform || rpm -q jboss-enterprise-application-platform || jboss-enterprise-application-platform --version

2. No fixed release: DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison jboss-enterprise-application-platform sudo apt install jboss-enterprise-application-platform=<VERSION_BEFORE_7.0.0> sudo apt-mark hold jboss-enterprise-application-platform

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jboss-enterprise-application-platform sudo dnf downgrade jboss-enterprise-application-platform-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add jboss-enterprise-application-platform

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat jboss fuse DOWNGRADE

Affected: 7.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0.0

1. Check installed version

apt-cache policy jboss-fuse || rpm -q jboss-fuse || jboss-fuse --version

2. No fixed release: DOWNGRADE to a release before 7.0.0 (Debian / Ubuntu)

apt-cache madison jboss-fuse sudo apt install jboss-fuse=<VERSION_BEFORE_7.0.0> sudo apt-mark hold jboss-fuse

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list jboss-fuse sudo dnf downgrade jboss-fuse-<VERSION_BEFORE_7.0.0> sudo dnf versionlock add jboss-fuse

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat single sign-on DOWNGRADE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

1. Check installed version

apt-cache policy single-sign-on || rpm -q single-sign-on || single-sign-on --version

2. No fixed release: DOWNGRADE to a release before 7.0 (Debian / Ubuntu)

apt-cache madison single-sign-on sudo apt install single-sign-on=<VERSION_BEFORE_7.0> sudo apt-mark hold single-sign-on

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list single-sign-on sudo dnf downgrade single-sign-on-<VERSION_BEFORE_7.0> sudo dnf versionlock add single-sign-on

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat undertow UPGRADE

Affected: >= 2.0.0 and <= 2.2.19 · 2.3.0 alpha1 · 2.3.0 alpha2

Fixed in: newer than 2.2.19

Safe to downgrade to: a release before 2.0.0

1. Check installed version

apt-cache policy undertow || rpm -q undertow || undertow --version

2. UPGRADE to newer than 2.2.19 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade undertow

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade undertow

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.0.0 (Debian / Ubuntu)

apt-cache madison undertow sudo apt install undertow=<VERSION_BEFORE_2.0.0> sudo apt-mark hold undertow

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list undertow sudo dnf downgrade undertow-<VERSION_BEFORE_2.0.0> sudo dnf versionlock add undertow

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

netapp active iq unified manager MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy active-iq-unified-manager || rpm -q active-iq-unified-manager || active-iq-unified-manager --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-2764?

integration camel k: mitigate or apply the listed mitigation; jboss enterprise application platform: downgrade or apply the listed mitigation; jboss fuse: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-2764 being exploited?

CVE-2022-2764 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-2764 affect?

CVE-2022-2764 affects integration camel k, jboss enterprise application platform, jboss fuse. Severity is medium (CVSS 4.9). A flaw was found in Undertow. Denial of service can be achieved as Undertow server waits for the LAST_CHUNK forever for EJB invocations.

How urgent is CVE-2022-2764?

Priority 37/100. On your watchlist

Software pages

JBoss and WildFly vulnerabilities

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References

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