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FreeBSD "realpath()" Buffer Overflow Vulnerability
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Secunia Advisory:
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SA9423
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Release Date:
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2003-08-04
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Last Update:
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2003-08-15
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Popularity:
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9,845 views
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Critical:
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Highly critical
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Impact:
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Privilege escalation
DoS
System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| OS: | FreeBSD 4.x
FreeBSD 5.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
A vulnerability has been identified in FreeBSD, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) on a vulnerable system or compromise it.
The vulnerability is caused due to an off-by-one error in the "realpath()" function. This may be exploited via an application using the vulnerable function by specifying a path where the resolved path length is exactly 1024 characters long.
The vulnerability is reported to affect all releases of FreeBSD up to and including 4.8-RELEASE and 5.0-RELEASE, and 4-STABLE prior to May 22 17:11:44 2003 UTC.
NOTE: Reportedly, the applications "lukemftpd" and "sftp_server" are vulnerable. However, other applications may also be affected (see the original advisory for a list of applications using the vulnerable function).
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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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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