CVE-2014-1838
MEDIUMCVE-2014-1838 is a medium-severity (CVSS 5.6) CWE-59 vulnerability in logilab-common. O3 Security confirms whether CVE-2014-1838 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Improper Link Resolution Before File Access in logilab-commons
Blast Radius
logilab-commonReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
The (1) extract_keys_from_pdf and (2) fill_pdf functions in pdf_ext.py in logilab-commons before 0.61.0 allows local users to overwrite arbitrary files and possibly have other unspecified impact via a symlink attack on /tmp/toto.fdf.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | logilab-common | all versions | 0.61.0 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for logilab-common. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update logilab-common to 0.61.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2014-1838 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2014-1838 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2014-1838. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2014-1838 in your dependencies?
O3 detects CVE-2014-1838 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.