CVE-2011-1934: lilo-uuid-diskid causes lilo.conf to be world-readable in lilo 23.1.

Routine

MEDIUM 4.3WATCHLISTDOWNGRADEMITIGATE

CVE-2011-1934 is a medium-severity flaw (CVSS 4.3) affecting lilo, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

lilo-uuid-diskid causes lilo.conf to be world-readable in lilo 23.1.

Why this priority

On your watchlist

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-200
Published	2019-11-26
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: debian · lilo project

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

Am I affected?

Timeline

2019-11-26 22:15 UTCPublished CVE record published
2026-06-16 23:30 UTCUpdated Record last modified

lilo project lilo DOWNGRADE

Affected: 23.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 23.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 23.1 (Debian / Ubuntu)

apt-cache madison lilo sudo apt install lilo=<VERSION_BEFORE_23.1> sudo apt-mark hold lilo

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

dnf --showduplicates list lilo sudo dnf downgrade lilo-<VERSION_BEFORE_23.1> sudo dnf versionlock add lilo

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.

debian debian linux MITIGATE

Affected: 8.0 · 9.0 · 10.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2011-1934?

lilo: downgrade or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-1934 being exploited?

CVE-2011-1934 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-2011-1934 affect?

CVE-2011-1934 affects lilo, debian linux. Severity is medium (CVSS 4.3). lilo-uuid-diskid causes lilo.conf to be world-readable in lilo 23.1.

How urgent is CVE-2011-1934?

Priority 36/100. On your watchlist

Software pages

Debian vulnerabilities

References

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