CVE-2018-7442 Path traversal in n/a

Critical 9.1 Published 23 Feb 2018 Updated 5 Aug 2024

Attackers can overwrite arbitrary files via path traversal in the gplotMakeOutput function of the Leptonica library.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2018-7442?

CVE-2018-7442 is a critical path traversal vulnerability in n/a, published on 23 Feb 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in Leptonica through 1.75.3. The gplotMakeOutput function does not block '/' characters in the gplot rootname argument, potentially leading to path traversal and arbitrary file overwrite.

Weakness: CWE-22

Which versions are affected by CVE-2018-7442?

It affects 1 product.

Products include Leptonica Leptonica.

How do I fix CVE-2018-7442?

Upgrade to a fixed version.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2018-7442 being exploited?

There is no known exploitation of CVE-2018-7442 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2018-7442, GHSA-fmvw-q9g6-wfgh, UBUNTU-CVE-2018-7442.