CVE-2001-0323 Denial of service in n/a
Remote attackers can cause denial of service on UNIX systems by spoofing ICMP packets to manipulate Path MTU discovery.
- 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-2001-0323?
CVE-2001-0323 is a medium-severity denial of service vulnerability in n/a, published on 4 Apr 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ICMP path MTU (PMTU) discovery feature in various UNIX systems allows remote attackers to cause a denial of service by spoofing "ICMP Fragmentation needed but Don't Fragment (DF) set" packets between two target hosts, which could cause one host to lower its MTU when transmitting to the other host.
Which versions are affected by CVE-2001-0323?
How do I fix CVE-2001-0323?
No fix has been published for CVE-2001-0323 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-2001-0323 being exploited?
There is no known exploitation of CVE-2001-0323 in the wild and no public exploit code.
Sources
Also known as GHSA-w77m-2mfj-gf6v.