Multiple Vendor CDE libDtHelp Buffer Overflow Vulnerability - Secunia Advisories - Vulnerability Intelligence

Multiple Vendor CDE libDtHelp Buffer Overflow Vulnerability
Secunia Advisory:	SA10144	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2003-11-06
Last Update:	2004-08-26
Popularity:	9,771 views

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

OS:	Open UNIX 8.x.x UnixWare 7.x.x

Software:	DeXtop 3.x

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2003-0834

Description: A vulnerability has been reported in CDE (Common Desktop Environment), which can be exploited by malicious, local users to escalate their privileges. The vulnerability is caused due to a boundary error in CDE libDtHelp when handling the "DTHELPUSERSEARCHPATH" environment variable. This can be exploited via suid application linked to libDtHelp (eg. dtprintinfo) to cause a buffer overflow by inserting an overly long, specially crafted string and then invoking Help. This can also be exploited using the "LOGNAME" environment variable. The vulnerability affects the following products: * Xi Graphics deXtop CDE 3.0 * SCO Open UNIX 8.0.0 * SCO UnixWare 7.1.3 and 7.1.1 Solution: Apply patches. -- Xi Graphics deXtop CDE 3.0 -- ftp://ftp.xig.com/pub/updates/dextop/3.0/DEX3000.003.tar.gz This patch also fixes an older vulnerability, which can be exploited to escalate privileges: SA8468 -- SCO Open UNIX and UnixWare -- ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.31/erg712445.pkg.Z Provided and/or discovered by: Discovered by: Kevin Kotas Further information provided by: iDEFENSE Labs Changelog: 2004-08-26: Added another exploit vector in "description" section. Original Advisory: CERT VU#575804: http://www.kb.cert.org/vuls/id/575804 SCO UnixWare and Open UNIX: ftp://ftp.sco.com/pub/updates/UnixWare/CSSA-2003-SCO.31/CSSA-2003-SCO.31.txt Xi Graphics deXtop CDE: ftp://ftp.xig.com/pub/updates/dextop/3.0/DEX3000.003.txt Other References: SA8468: http://secunia.com/advisories/8468/ iDEFENSE: http://www.idefense.com/application/poi/display?id=134&type=vulnerabilities

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