CVE-2024-3933: In Eclipse OpenJ9 release versions prior to 0.44.0 and after 0.13.0, when running with JVM option -Xgc:concurr

Routine

MEDIUM 5.3UPGRADE

CVE-2024-3933 is a medium-severity flaw (CVSS 5.3) affecting openj9. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Eclipse OpenJ9 release versions prior to 0.44.0 and after 0.13.0, when running with JVM option -Xgc:concurrentScavenge, the sequence generated for System.arrayCopy on the IBM Z platform with hardware and software support for guarded storage [1], could allow access to a buffer with an incorrect length value when executing an arraycopy sequence while the Concurrent Scavenge Garbage Collection cycle is active and the source and destination memory

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 89%)
CISA exploited list	No
Weakness	CWE-125, CWE-787, CWE-805
Published	2024-05-27
Last modified	2026-06-17

Publisher (CNA): Eclipse Foundation · Vendor: eclipse

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

Am I affected?

Timeline

2024-05-27 06:15 UTCPublished CVE record published
2026-06-17 07:45 UTCUpdated Record last modified

eclipse openj9 UPGRADE

Affected: >= 0.13.0 and < 0.44.0

Fixed in: 0.44.0

Safe to downgrade to: a release before 0.13.0

1. Check installed version

apt-cache policy openj9 || rpm -q openj9 || openj9 --version

2. UPGRADE to 0.44.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade openj9

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade openj9

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 0.13.0 (Debian / Ubuntu)

apt-cache madison openj9 sudo apt install openj9=<VERSION_BEFORE_0.13.0> sudo apt-mark hold openj9

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

dnf --showduplicates list openj9 sudo dnf downgrade openj9-<VERSION_BEFORE_0.13.0> sudo dnf versionlock add openj9

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.

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-2024-3933?

openj9: upgrade to 0.44.0. Exact commands for each OS are on this page.

Is CVE-2024-3933 being exploited?

CVE-2024-3933 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-2024-3933 affect?

CVE-2024-3933 affects openj9. Severity is medium (CVSS 5.3). In Eclipse OpenJ9 release versions prior to 0.44.0 and after 0.13.0, when running with JVM option -Xgc:concurrentScavenge, the sequence generated for System.arrayCopy on the IBM Z platform with hardware and software support for guarded stor

How urgent is CVE-2024-3933?

Priority 21/100. No elevated risk signals yet.

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References

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