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OpenBSD SIOCGIFRTLABEL Denial of Service Vulnerability
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Secunia Advisory:
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SA28473
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Release Date:
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2008-01-14
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Last Update:
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2008-02-04
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Popularity:
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3,602 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 Patch
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| OS: | OpenBSD 4.2
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| CVE reference: | CVE-2008-0384
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Description:
A vulnerability has been reported in OpenBSD, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to a NULL pointer dereference error within the handling of SIOCGIFRTLABEL ioctls in sys/net/if.c and sys/net/route.c. This can be exploited to cause a kernel panic via an SIOCGIFRTLABEL ioctl call on interfaces without an assigned route label.
The vulnerability is reported in OpenBSD 4.2.
Solution:
Apply vendor patch.
ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.2/common/005_ifrtlabel.patch
Provided and/or discovered by:
The vendor credits Chris Cappuccio.
Changelog:
2008-02-04: Added CVE reference.
Original Advisory:
http://openbsd.org/errata42.html#005_ifrtlabel
http://marc.info/?l=openbsd-security-announce&m=120007327504064&w=2
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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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