CVE-2018-16452 Denial of service in n/a
An attacker can cause a denial of service in tcpdump by triggering stack exhaustion via recursive SMB parser input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-16452?
CVE-2018-16452 is a high-severity denial of service vulnerability in Tcpdump Tcpdump, published on 3 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The SMB parser in tcpdump before 4.9.3 has stack exhaustion in smbutil.c:smb_fdata() via recursion.
Weakness: CWE-674
Which versions are affected by CVE-2018-16452?
It affects 1 product.
Products include Tcpdump Tcpdump.
How do I fix CVE-2018-16452?
Upgrade to a fixed version.
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-2018-16452 being exploited?
There is no known exploitation of CVE-2018-16452 in the wild and no public exploit code.
Other vulnerabilities in Tcpdump Tcpdump
Sources
Also known as ALPINE-CVE-2018-16452, DEBIAN-CVE-2018-16452, GHSA-q8wg-hg8m-chwf, UBUNTU-CVE-2018-16452.