CVE-2000-0959 Path traversal in n/a

Low 1.2 Published 22 Jan 2001 Updated 8 Aug 2024

Local attackers can overwrite arbitrary files via symlink attacks by exploiting improper environment variable clearing in setuid programs using glibc.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2000-0959?

CVE-2000-0959 is a low-severity path traversal vulnerability in Gnu Glibc, published on 22 Jan 2001. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

glibc2 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environmental variables when a program is spawned from a setuid program, which could allow local users to overwrite files via a symlink attack.

Which versions are affected by CVE-2000-0959?

It affects 1 product.

Products include Gnu Glibc.

How do I fix CVE-2000-0959?

No fix has been published for CVE-2000-0959 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2000-0959 being exploited?

There is no known exploitation of CVE-2000-0959 in the wild and no public exploit code.

All Gnu Glibc vulnerabilities

Sources

Also known as GHSA-wxmg-r7qv-7qf9.