Secunia Security Advisory - Evgeny Legerov has reported a vulnerability in FreeBSD, which can be exploited by malicious people to cause a DoS (Denial of Service).
658ac3ef6d1c65441e62465b8724b2a6ec69603809baafd794ce47bd0edf18b5
TITLE:
FreeBSD "nfsd" NFS Mount Request Denial of Service
SECUNIA ADVISORY ID:
SA19017
VERIFY ADVISORY:
http://secunia.com/advisories/19017/
CRITICAL:
Less critical
IMPACT:
DoS
WHERE:
>From local network
OPERATING SYSTEM:
FreeBSD 6.x
http://secunia.com/product/6778/
DESCRIPTION:
Evgeny Legerov has reported a vulnerability in FreeBSD, which can be
exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error within the handling of
NFS mount requests. This can be exploited to cause kernel panic via a
specially-crafted request sent to the "nfsd" daemon on port 2049/tcp.
The vulnerability has been reported in the FreeBSD 6.0 kernel. Other
versions may also be affected.
SOLUTION:
Restrict access to the affected service using a firewall.
PROVIDED AND/OR DISCOVERED BY:
Evgeny Legerov
ORIGINAL ADVISORY:
http://lists.immunitysec.com/pipermail/dailydave/2006-February/002982.html
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