CVE-2005-0740 Denial of service in n/a
Remote attackers can crash OpenBSD systems via crafted TCP timestamp options, requiring OS patches to prevent denial of service.
- 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-2005-0740?
CVE-2005-0740 is a medium-severity denial of service vulnerability in Openbsd Openbsd, published on 13 Mar 2005. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The TCP stack (tcp_input.c) in OpenBSD 3.5 and 3.6 allows remote attackers to cause a denial of service (system panic) via crafted values in the TCP timestamp option, which causes invalid arguments to be used when calculating the retransmit timeout.
Which versions are affected by CVE-2005-0740?
It affects 1 product.
Products include Openbsd Openbsd.
How do I fix CVE-2005-0740?
No fix has been published for CVE-2005-0740 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-2005-0740 being exploited?
There is no known exploitation of CVE-2005-0740 in the wild and no public exploit code.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-xjqv-85hf-cf6h.