Ubuntu USN · USN-8452-1

pbkdf2 vulnerability

Published: Thu, 18 Jun 2026 16:30

CVE-2025-6545

Summary

pbkdf2 could be made to generate predictable cryptographic keys if it received specially crafted input.

Details

Nikita Skovoroda discovered that pbkdf2 did not properly validate certain algorithm names. An attacker could possibly use this issue to generate predictable cryptographic keys, resulting in signature spoofing.

Recommended actions per Ubuntu release

StackPatch playbook auto-generated per release codename and per affected package.

Ubuntu bionic

node-pbkdf2→3.0.14-2ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.0.14-2ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.0.14-2ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
node-pbkdf2→3.0.14-2ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.0.14-2ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.0.14-2ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu focal

node-pbkdf2→3.0.16-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.0.16-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.0.16-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
node-pbkdf2→3.0.16-1ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.0.16-1ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.0.16-1ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu jammy

node-pbkdf2→3.1.2-2ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.2-2ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.1.2-2ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
node-pbkdf2→3.1.2-2ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.2-2ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.1.2-2ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Ubuntu noble

node-pbkdf2→3.1.2-3ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.2-3ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.1.2-3ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.
node-pbkdf2→3.1.2-3ubuntu0.1~esm1apt_upgrade_esm
Fixed at 3.1.2-3ubuntu0.1~esm1 — ESM-only. Enable Ubuntu Pro (free for 5 personal machines) or treat as watch item.
```
sudo pro attach <token>
sudo apt-get update
sudo apt-get install --only-upgrade -y node-pbkdf2=3.1.2-3ubuntu0.1~esm1
```
Sign up at https://ubuntu.com/pro. Free for personal + small-team use.

Are YOU affected by USN-8452-1?

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