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UnixWare "uidadmin' Buffer Overflow Vulnerability
Secunia Advisory: SA17986
Release Date: 2005-12-13
Popularity: 5,621 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Vendor Patch

OS:UnixWare 7.x.x

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CVE reference:CVE-2005-3903


Description:
iDEFENSE has reported a vulnerability in UnixWare, which can be exploited by malicious, local users to gain escalated privileges.

The vulnerability is caused due to a boundary error in the setuid root "uidadmin" binary. This can be exploited to cause a stack-based buffer overflow via a specially crafted file (larger than 1600 bytes) that is supplied to the binary via the "-S" commandline option.

Successful exploitation allows arbitrary code execution with root privileges.

The vulnerability has been reported in version 7.1.3 and 7.1.4.

Solution:
Apply updated packages.

UnixWare 7.1.3 / 7.1.4:
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.54/p533178.image
612805326316c16e07d632d3e0d1a82e

Provided and/or discovered by:
iDEFENSE Labs

Original Advisory:
SCO:
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.54/SCOSA-2005.54.txt

iDEFENSE:
http://www.idefense.com/application/poi/display?id=350&type=vulnerabilities


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