CVE-2010-3299 Weak cryptography in rails

What is CVE-2010-3299?

CVE-2010-3299 is a medium-severity vulnerability in Debian Debian Linux, published on 12 Nov 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The encrypt/decrypt functions in Ruby on Rails 2.3 are vulnerable to padding oracle attacks.

Weakness: CWE-311

Which versions are affected by CVE-2010-3299?

It affects 2 products.

Products include Debian Debian Linux, Rubyonrails Rails.

How do I fix CVE-2010-3299?

No fix has been published for CVE-2010-3299 yet. Limit exposure of the affected software until one is available.

Is CVE-2010-3299 being exploited?

There is no known exploitation of CVE-2010-3299 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2010-3299, GHSA-wf6g-6673-f52f.