Quick answers
- Is CVE-1999-0015 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-1999-0015 being exploited in the wild.
- How severe is CVE-1999-0015?
- Medium severity, with a CVSS score of 5, published 16 December 1997.
- Which products and versions are affected?
- Multiple Vendors TCP/IP Stack.
- Is there a fix for CVE-1999-0015?
- 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-1999-0015 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-1999-0015?
- Check whether anything you run is named in the advisory. 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 'Teardrop' attack is a denial of service (DoS) vulnerability involving the reassembly of IP fragments. It occurs when an attacker sends overlapping IP fragments with offset values that cause the reassembly logic in the target's TCP/IP stack to malfunction, typically leading to a kernel panic or system crash. The attack is network-based and requires no authentication or user interaction. While primarily associated with legacy operating systems, it represents a classic failure in input validation during packet reassembly. Modern systems have long since implemented protections against this specific fragmentation flaw.
Affected products
- Multiple Vendors TCP/IP Stack
Timeline
- 1997-12-16: disclosed