CVE-2000-0333 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can cause a denial of service in network sniffers like tcpdump by sending malformed DNS packets that trigger an infinite loop.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2000-0333?

CVE-2000-0333 is a medium-severity denial of service vulnerability in Ethereal Group Ethereal, published on 18 May 2000. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

tcpdump, Ethereal, and other sniffer packages allow remote attackers to cause a denial of service via malformed DNS packets in which a jump offset refers to itself, which causes tcpdump to enter an infinite loop while decompressing the packet.

Which versions are affected by CVE-2000-0333?

It affects 2 products.

Products include Ethereal Group Ethereal, Lbl Tcpdump.

How do I fix CVE-2000-0333?

No fix has been published for CVE-2000-0333 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2000-0333 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2000-0333 exists.

Public exploit code: 2 Exploit-DB entries.

All Ethereal Group Ethereal vulnerabilities

Sources

Also known as GHSA-fpxw-v79p-g5g4.

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