CVE-2004-0158: Buffer overflow in lbreakout2 allows local users to gain 'games' group privileges via a large HOME environment

Routine

MEDIUM 4.6DOWNGRADE

CVE-2004-0158 is a medium-severity flaw (CVSS 4.6) affecting lbreakout2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in lbreakout2 allows local users to gain 'games' group privileges via a large HOME environment variable to (1) editor.c, (2) theme.c, (3) manager.c, (4) config.c, (5) game.c, (6) levels.c, or (7) main.c.

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	0.9% (top 41%)
CISA exploited list	No
Published	2004-03-29
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: lgames

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

Am I affected?

Timeline

2004-03-29 05:00 UTCPublished CVE record published
2026-06-16 22:05 UTCUpdated Record last modified

lgames lbreakout2 DOWNGRADE

Affected: 2.0 · 2.0.1 · 2.1 · 2.1.1 · 2.1.2 · 2.2 · 2.2.1 · 2.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy lbreakout2 || rpm -q lbreakout2 || lbreakout2 --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison lbreakout2 sudo apt install lbreakout2=<VERSION_BEFORE_2.0> sudo apt-mark hold lbreakout2

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

dnf --showduplicates list lbreakout2 sudo dnf downgrade lbreakout2-<VERSION_BEFORE_2.0> sudo dnf versionlock add lbreakout2

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: LGames LBreakout2 2.2.2 - Multiple Environment Variable Buffer Overflow Vulnerabilities

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-2004-0158?

lbreakout2: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2004-0158 being exploited?

CVE-2004-0158 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-2004-0158 affect?

CVE-2004-0158 affects lbreakout2. Severity is medium (CVSS 4.6). Buffer overflow in lbreakout2 allows local users to gain 'games' group privileges via a large HOME environment variable to (1) editor.c, (2) theme.c, (3) manager.c, (4) config.c, (5) game.c, (6) levels.c, or (7) main.c.

How urgent is CVE-2004-0158?

Priority 36/100. Public exploit reference

References

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