Quick answers
- Is CVE-1999-0214 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-1999-0214 being exploited in the wild.
- How severe is CVE-1999-0214?
- Critical severity, with a CVSS score of 10, published 21 July 1992.
- Which products and versions are affected?
- Generic TCP/IP Stack.
- Is there a fix for CVE-1999-0214?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-1999-0214 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-1999-0214?
- Check whether you run Generic TCP/IP Stack. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in the handling of ICMP 'Destination Unreachable' messages within the TCP/IP stack. An attacker can craft and send forged ICMP unreachable packets to a target host, spoofing the source address of an active connection. Because many early network implementations did not properly validate these ICMP messages against the state of active TCP connections, the host would immediately terminate the session. This allows a remote, unauthenticated attacker to perform a denial of service (DoS) attack against any reachable network service.
Affected products
- Generic TCP/IP Stack
Timeline
- 1992-07-21: disclosed