CVE-2000-0949

Heap overflow in savestr function in LBNL traceroute 1.4a5 and earlier allows a local user to execute arbitrary commands via the -g option.

What this means for your business

It affects Lbl Traceroute. It matters if your company, or a supplier that handles your data, runs it.
Code showing how to exploit it has been published, but real attacks have not been confirmed.
An attacker can use it only with access to the machine itself.
FIRST's prediction model gives it a 1% chance of attack attempts being seen in the next 30 days, ranking above 66% of all known flaws.

What to do

1Check whether your company or your suppliers run Lbl Traceroute, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposed Book a call

Scoring

CVSS: 7.2 (v2.0)
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C
Assigned by: cve@mitre.org

Dates

Published: 2000-12-19
Last modified: 2026-09-23
Sources: NVD

Affected products

Lbl Lbl Traceroute1.4a5
Sun Sunos5.5.1

As listed in the NVD configuration data. Not a statement about your estate.