622 : BSD kern_sig.c sigvec() Crafted Address Local DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
8	907	over 10 years ago	about 5 years ago	0 times	85%

Timeline

Disclosure Date
1986-05-13

Description

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.

Classification

Location: Local Access Required
Attack Type: Denial of Service
Impact: Loss of Availability

Solution

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

Products

BSDI

BSD

4.2

References

Mail List Post: http://securitydigest.org/unix/archive/024

Credit

Doug Hosking -

CVSSv2 Score

NVD does not currently have a CVSSv2 score assigned.

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