CVE-2014-1838 Improper Link Resolution Before File Access in logilab-commons
Local attackers can overwrite arbitrary files via symlink attacks in logilab-commons PDF functions, requiring library upgrade.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2014-1838?
CVE-2014-1838 is a medium-severity path traversal vulnerability in Opensuse Opensuse, published on 11 Mar 2014. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-59
Which versions are affected by CVE-2014-1838?
3 open source packages ship an affected version, including logilab-common. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
logilab-common PyPI | All versions | 0.60.1 |
logilab-common PyPI | All versions | 0.61.0 |
logilab-common PyPI | All versions | 0.61.0 |
Products include Logilab Logilab-Common, Opensuse Opensuse.
How do I fix CVE-2014-1838?
Upgrade logilab-common to a fixed version for your release line: 0.60.1 or 0.61.0.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2014-1838 being exploited?
There is no known exploitation of CVE-2014-1838 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Opensuse
Sources
Also known as DEBIAN-CVE-2014-1838, GHSA-rr52-wg7f-8875, PYSEC-2014-83.