OSVDB ID: 908 Title: Multiple BSD TCP/IP Stacks IP Fragmentation Remote DoS |
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Description |
Certain BSD derived TCP/IP stacks contain a flaw that may allow a remote denial of service. The issue is triggered when a malicious user creates and sends a pair of malformed IP packets that are reassembled into an invalid UDP datagram. The invalid UDP datagram will cause the kernel to panic and crash, resulting in a loss of availability for the platform. |
Classification |
Location:
Remote / Network Access
Attack Type: Denial of Service Impact: Loss of Availability Exploit: Exploit Public Disclosure: OSVDB Verified, Vendor Verified |
Solution |
Upgrade BSD to version 4.0 or higher, as it has been reported to fix this vulnerability. In addition, BSDI has released a patch for some older versions. Upgrade FreeBSD to version 3.0 or higher after the correction date, as it has been reported to fix this vulnerability. In addition, FreeBSD has released a patch for some older versions. Upgrade OpenBSD to version 2.4 or higher after the correction date, as it has been reported to fix this vulnerability. In addition, OpenBSD has released a patch for some older versions. |
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Credit |
Unknown or Incomplete |