CVE-2006-5989 Memory corruption in n/a

Medium 5.0 Published Updated

Remote attackers can cause a denial of service via a heap-based buffer overflow in the mod_auth_kerb module triggered by crafted Kerberos messages.

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

What is CVE-2006-5989?

CVE-2006-5989 is a medium-severity memory corruption vulnerability in n/a, published on 20 Nov 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Off-by-one error in the der_get_oid function in mod_auth_kerb 5.0 allows remote attackers to cause a denial of service (crash) via a crafted Kerberos message that triggers a heap-based buffer overflow in the component array.

Which versions are affected by CVE-2006-5989?

It affects 1 product.

Linux distribution packages (8)
mod_auth_kerb Red Hat:enterprise_linux:4::asAll versions0:5.0-1.3
mod_auth_kerb-debuginfo Red Hat:enterprise_linux:4::asAll versions0:5.0-1.3
mod_auth_kerb Red Hat:enterprise_linux:4::desktopAll versions0:5.0-1.3
mod_auth_kerb-debuginfo Red Hat:enterprise_linux:4::desktopAll versions0:5.0-1.3
mod_auth_kerb Red Hat:enterprise_linux:4::esAll versions0:5.0-1.3
mod_auth_kerb-debuginfo Red Hat:enterprise_linux:4::esAll versions0:5.0-1.3
mod_auth_kerb Red Hat:enterprise_linux:4::wsAll versions0:5.0-1.3
mod_auth_kerb-debuginfo Red Hat:enterprise_linux:4::wsAll versions0:5.0-1.3

Products include Mod Auth Kerb Mod Auth Kerb.

How do I fix CVE-2006-5989?

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-2006-5989 being exploited?

There is no known exploitation of CVE-2006-5989 in the wild and no public exploit code.

Sources

Also known as DSA-1247-1, GHSA-f5v5-ggh9-mj78, RHSA-2006:0746.

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