CVE-2000-0336: Linux OpenLDAP server allows local users to modify arbitrary files via a symlink attack.

Routine

LOW 2.1WATCHLISTDOWNGRADEMITIGATEMITIGATE

CVE-2000-0336 is a low-severity flaw (CVSS 2.1) affecting openldap, mandrake linux, linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Linux OpenLDAP server allows local users to modify arbitrary files via a symlink attack.

Why this priority

Public exploit reference
On your watchlist

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

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Published	2000-04-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mandrakesoft · openldap · redhat · turbolinux

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

Am I affected?

Timeline

2000-04-21 04:00 UTCPublished CVE record published
2026-06-16 21:51 UTCUpdated Record last modified

openldap openldap DOWNGRADE

Affected: 1.2.7 · 1.2.8 · 1.2.9 · 1.2.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.7

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2.7 (Debian / Ubuntu)

apt-cache madison openldap sudo apt install openldap=<VERSION_BEFORE_1.2.7> sudo apt-mark hold openldap

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

dnf --showduplicates list openldap sudo dnf downgrade openldap-<VERSION_BEFORE_1.2.7> sudo dnf versionlock add openldap

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.

mandrakesoft mandrake linux MITIGATE

Affected: 6.1 · 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.1

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.

redhat linux MITIGATE

Affected: 6.1 · 6.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.1

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.

turbolinux turbolinux MITIGATE

Affected: 4.2 · 4.4 · 6.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2

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.

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: OpenLDAP 1.2.7/1.2.8/1.2.9/1.2.10 - '/usr/tmp/' Symlink

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-2000-0336?

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

Is CVE-2000-0336 being exploited?

CVE-2000-0336 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-2000-0336 affect?

CVE-2000-0336 affects openldap, mandrake linux, linux. Severity is low (CVSS 2.1). Linux OpenLDAP server allows local users to modify arbitrary files via a symlink attack.

How urgent is CVE-2000-0336?

Priority 32/100. Public exploit reference; On your watchlist

Software pages

OpenLDAP vulnerabilities

Related CVEs

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CVE-2021-27212 HIGH 7.5 UPGRADE MITIGATE In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuer
CVE-2020-36230 HIGH 7.5 UPGRADE MITIGATE A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN parsi
CVE-2020-36229 HIGH 7.5 UPGRADE MITIGATE A flaw was discovered in ldap_X509dn2bv in OpenLDAP before 2.4.57 leading to a slapd crash in the X.509 DN par

References

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