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FreeBSD "/dev/crypto" Local Denial of Service Vulnerability
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Secunia Advisory:
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SA22543
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Release Date:
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2006-10-25
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Last Update:
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2007-11-08
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Popularity:
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6,485 views
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Critical:
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Not critical
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Impact:
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DoS
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Where:
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Local system
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Solution Status:
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Vendor Workaround
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| OS: | FreeBSD 6.x
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| CVE reference: | CVE-2006-5550
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Description:
Evgeny Legerov has reported a vulnerability in FreeBSD, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the implementation of "/dev/crypto" and can be exploited by sending certain IOCTLs to "/dev/crypto".
The vulnerability is reported in version 6.1. Other versions may also be affected.
Solution:
Fixed in CVS repository.
http://www.freebsd.org/cgi/cvsweb.cgi...ev.c.diff?r1=1.25.2.3;r2=1.25.2.4;f=h
Provided and/or discovered by:
Evgeny Legerov
Changelog:
2006-10-31: Added CVE reference.
2007-11-08: Updated "Solution" section.
Original Advisory:
http://elegerov.blogspot.com/2006/10/here-is-lame-proof-of-concept-code-for.html
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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