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CVE-2013-0334

CVE-2013-0334 is a Improper Input Validation vulnerability in bundler bundler. O3 Security detects and blocks CVE-2013-0334 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.

Bundler before 1.7, when multiple top-level source lines are used, allows remote attackers to install arbitrary gems by creating a gem with the same name as another gem in a different source.

Published
Oct 31, 2014
Updated
Jun 16, 2026
Affected
3 products
Patched
See advisory
Exploits
None indexed

Description

Bundler before 1.7, when multiple top-level source lines are used, allows remote attackers to install arbitrary gems by creating a gem with the same name as another gem in a different source.

Affected Products

3 products · 6 configurations
Application
bundlerbundler
< 1.7.0
range
OS
fedorafedoraproject
3 versions
192021
OS
opensuseopensuse
2 versions
13.113.2

Detection & mitigation playbook

Vendor / appliance
  1. Detect

    Inventory every bundler bundler deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.

  2. Fix

    Apply the bundler bundler security patch or hotfix for CVE-2013-0334 on the affected version, following the vendor advisory for your exact build.

  3. Workarounds

    Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.

  4. How O3 protects you

    O3 detects and blocks CVE-2013-0334 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.

Tailored to CVE-2013-0334. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Bundler before 1.7, when multiple top-level source lines are used, allows remote attackers to install arbitrary gems by creating a gem with the same name as another gem in a different source.
O3 Security · Runtime Protection

Is CVE-2013-0334 being exploited in your environment?

O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2013-0334 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.