CVE-2001-0169: When using the LD_PRELOAD environmental variable in SUID or SGID applications, glibc does not verify that prel

Q: How do I fix CVE-2001-0169?

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

Q: Is CVE-2001-0169 being exploited?

CVE-2001-0169 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2001-0169 affect?

CVE-2001-0169 affects mandrake linux, mandrake linux corporate server, linux. Severity is low (CVSS 2.1). When using the LD_PRELOAD environmental variable in SUID or SGID applications, glibc does not verify that preloaded libraries in /etc/ld.so.cache are also SUID/SGID, which could allow a local user to overwrite arbitrary files by loading a l

Q: How urgent is CVE-2001-0169?

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

Routine

LOW 2.1WATCHLISTMITIGATEMITIGATEMITIGATE

CVE-2001-0169 is a low-severity flaw (CVSS 2.1) affecting mandrake linux, mandrake linux corporate server, linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

When using the LD_PRELOAD environmental variable in SUID or SGID applications, glibc does not verify that preloaded libraries in /etc/ld.so.cache are also SUID/SGID, which could allow a local user to overwrite arbitrary files by loading a library from /lib or /usr/lib.

Why this priority

Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.9% (top 41%)
CISA exploited list	No
Published	2001-03-26
Last modified	2026-06-16

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

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

Am I affected?

Timeline

2001-03-26 05:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

mandrakesoft mandrake linux MITIGATE

Affected: 6.0 · 6.1 · 7.0 · 7.1 · 7.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

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.

mandrakesoft mandrake linux corporate server MITIGATE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

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: 6.0 · 6.1 · 6.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

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.

trustix secure linux MITIGATE

Affected: 1.1 · 1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

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 UPGRADE

Affected: <= 6.0.5 · 6.1

Fixed in: newer than 6.0.5

Safe to downgrade to: no unaffected older release

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: GLIBC 2.1.3 - 'LD_PRELOAD' Local Privilege Escalation

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-2001-0169?

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

Is CVE-2001-0169 being exploited?

CVE-2001-0169 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-2001-0169 affect?

CVE-2001-0169 affects mandrake linux, mandrake linux corporate server, linux. Severity is low (CVSS 2.1). When using the LD_PRELOAD environmental variable in SUID or SGID applications, glibc does not verify that preloaded libraries in /etc/ld.so.cache are also SUID/SGID, which could allow a local user to overwrite arbitrary files by loading a l

How urgent is CVE-2001-0169?

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

Software pages

glibc vulnerabilities

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References

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