622 : BSD kern_sig.c sigvec() Crafted Address Local DoS
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Disclosure Date


BSD contains a flaw that may allow a local denial of service. The issue is triggered when addresses passed to sigvec() (as in user level signal() handler addreses) are not properly validated by the kernel before being used, resulting in a loss of availability for the platform.


Location: Local Access Required
Impact: Loss of Availability


Currently, there are no known workarounds or upgrades to correct this issue. However, Doug Hosking has released an unofficial patch to address this vulnerability.





  • Doug Hosking -

CVSSv2 Score

NVD does not currently have a CVSSv2 score assigned.


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