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NetBSD "compat" Privilege Escalation Vulnerabilities
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Secunia Advisory:
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SA13501
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Release Date:
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2004-12-17
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Last Update:
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2005-01-06
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Popularity:
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10,628 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
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: | NetBSD 1.x
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| CVE reference: | CVE-2004-1323
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Description:
Evgeny Demidov has reported some vulnerabilities in NetBSD, which can be exploited by malicious, local users to cause a DoS (Denial of Service) and potentially gain escalated privileges.
The vulnerabilities are caused due to some errors in the translation functions in "/usr/src/sys/compat/", which handles support for execution of foreign binaries. This can be exploited using some specially crafted syscall arguments in a malicious foreign binary.
Successful exploitation can cause a vulnerable system to crash or may lead to escalated privileges.
The following versions are affected:
* NetBSD-current (source prior to Oct 27, 2004)
* NetBSD 1.6.2
* NetBSD 1.6.1
* NetBSD 1.6
* NetBSD 1.5.3
* NetBSD 1.5.2
* NetBSD 1.5.1
* NetBSD 1.5
Solution:
The vulnerabilities have been fixed in the following versions:
* NetBSD-current (Oct 28, 2004)
* NetBSD-1.6 branch (Dec 17, 2004)
Provided and/or discovered by:
Evgeny Demidov
Changelog:
2005-01-06: Added CVE reference.
Original Advisory:
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2004-010.txt.asc
http://gleg.net/advisory_netbsd2.shtml
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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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