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CVE-2014-9016: The password hashing API in Drupal 7.x before 7.34 and the Secure Password Hashes (aka phpass) module 6.x-2.x

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MEDIUM 5.0WATCHLISTUPGRADEUPGRADEMITIGATE

CVE-2014-9016 is a medium-severity flaw (CVSS 5.0) affecting drupal, secure passwords hashes, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The password hashing API in Drupal 7.x before 7.34 and the Secure Password Hashes (aka phpass) module 6.x-2.x before 6.x-2.1 for Drupal allows remote attackers to cause a denial of service (CPU and memory consumption) via a crafted request.

Why this priority

  • EPSS top 1%: very likely to be exploited
  • Public exploit reference
  • On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score5.0 (Medium)
EPSS exploit chance79.1% (top 1%)
CISA exploited listNo
Published2014-11-24
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: debian · drupal · secure password hashes project

Share: LinkedIn · X · Reddit

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

drupal drupal UPGRADE
Affected: >= 7.0 and < 7.34
Fixed in: 7.34
Safe to downgrade to: a release before 7.0
1. Check installed version
apt-cache policy drupal || rpm -q drupal || drupal --version
2. UPGRADE to 7.34 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade drupal
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade drupal
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.0 (Debian / Ubuntu)
apt-cache madison drupal sudo apt install drupal=<VERSION_BEFORE_7.0> sudo apt-mark hold drupal
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list drupal sudo dnf downgrade drupal-<VERSION_BEFORE_7.0> sudo dnf versionlock add drupal
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.
secure password hashes project secure passwords hashes UPGRADE
Affected: >= 6.x-2.0 and < 6.x-2.1
Fixed in: 6.x-2.1
Safe to downgrade to: a release before 6.x-2.0
1. Check installed version
apt-cache policy secure-passwords-hashes || rpm -q secure-passwords-hashes || secure-passwords-hashes --version
2. UPGRADE to 6.x-2.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade secure-passwords-hashes
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade secure-passwords-hashes
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 6.x-2.0 (Debian / Ubuntu)
apt-cache madison secure-passwords-hashes sudo apt install secure-passwords-hashes=<VERSION_BEFORE_6.x-2.0> sudo apt-mark hold secure-passwords-hashes
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list secure-passwords-hashes sudo dnf downgrade secure-passwords-hashes-<VERSION_BEFORE_6.x-2.0> sudo dnf versionlock add secure-passwords-hashes
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: 7.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.0
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.

Public exploits and detection

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

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-2014-9016?

drupal: upgrade to 7.34; secure passwords hashes: upgrade to 6.x-2.1; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-9016 being exploited?

CVE-2014-9016 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-2014-9016 affect?

CVE-2014-9016 affects drupal, secure passwords hashes, debian linux. Severity is medium (CVSS 5.0). The password hashing API in Drupal 7.x before 7.34 and the Secure Password Hashes (aka phpass) module 6.x-2.x before 6.x-2.1 for Drupal allows remote attackers to cause a denial of service (CPU and memory consumption) via a crafted request.

How urgent is CVE-2014-9016?

Priority 52/100. EPSS top 1%: very likely to be exploited; Public exploit reference; On your watchlist

Software pages

Drupal vulnerabilities · Debian vulnerabilities

Related CVEs

References

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