CVE-2003-0830: Buffer overflow in marbles 1.0.2 and earlier allows local users to gain privileges via a long HOME environment

Routine

MEDIUM 4.6DOWNGRADE

CVE-2003-0830 is a medium-severity flaw (CVSS 4.6) affecting marbles. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in marbles 1.0.2 and earlier allows local users to gain privileges via a long HOME environment variable.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.6 (Medium)
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Published	2003-11-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: marbles

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2003-11-17 05:00 UTCPublished CVE record published
2026-06-16 22:03 UTCUpdated Record last modified

marbles marbles DOWNGRADE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.1 (Debian / Ubuntu)

apt-cache madison marbles sudo apt install marbles=<VERSION_BEFORE_1.0.1> sudo apt-mark hold marbles

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

dnf --showduplicates list marbles sudo dnf downgrade marbles-<VERSION_BEFORE_1.0.1> sudo dnf versionlock add marbles

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: marbles 1.0.1 - Local Home Environment Variable Buffer Overflow

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-2003-0830?

marbles: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2003-0830 being exploited?

CVE-2003-0830 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-2003-0830 affect?

CVE-2003-0830 affects marbles. Severity is medium (CVSS 4.6). Buffer overflow in marbles 1.0.2 and earlier allows local users to gain privileges via a long HOME environment variable.

How urgent is CVE-2003-0830?

Priority 35/100. Public exploit reference

References

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