CVE-2004-0083 Memory corruption in n/a

Critical 10.0 Published 14 Feb 2004 Updated 8 Aug 2024

Remote attackers can execute arbitrary code via a malicious font alias file due to a buffer overflow in XFree86.

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

What is CVE-2004-0083?

CVE-2004-0083 is a critical memory corruption vulnerability in Openbsd Openbsd, published on 14 Feb 2004. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Buffer overflow in ReadFontAlias from dirfile.c of XFree86 4.1.0 through 4.3.0 allows local users and remote attackers to execute arbitrary code via a font alias file (font.alias) with a long token, a different vulnerability than CVE-2004-0084 and CVE-2004-0106.

Which versions are affected by CVE-2004-0083?

It affects 2 products.

Products include Openbsd Openbsd, Xfree86 Project X11r6.

How do I fix CVE-2004-0083?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2004-0083 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2004-0083 exists.

Public exploit code: 1 Exploit-DB entry.

All Openbsd Openbsd vulnerabilities

Sources

Also known as GHSA-275v-77j5-j2rj.