CVE-2007-0244 Denial of service in n/a
Remote attackers can cause denial of service in PoPToP PPTP servers by sending malformed GRE packets, disrupting VPN connections.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-0244?
CVE-2007-0244 is a medium-severity denial of service vulnerability in n/a, published on 11 May 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
pptpgre.c in PoPToP Point to Point Tunneling Server (pptpd) before 1.3.4 allows remote attackers to cause a denial of service (PPTP connection tear-down) via (1) GRE packets with out-of-order sequence numbers or (2) certain GRE packets that are processed using a wrong pointer and improperly dequeued.
Which versions are affected by CVE-2007-0244?
It affects 1 product.
Products include Poptop Pptp Server.
How do I fix CVE-2007-0244?
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-2007-0244 being exploited?
There is no known exploitation of CVE-2007-0244 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2007-0244, DSA-1288-1, DSA-1288-2, GHSA-97hh-37xq-gxw5.