Mac OS X Multiple Vulnerabilities - Secunia Advisories - Vulnerability Intelligence

Mac OS X Multiple Vulnerabilities
Secunia Advisory:	SA13902	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2005-01-20
Last Update:	2005-04-29
Popularity:	11,306 views

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

OS:	Apple Macintosh OS X

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2005-0971 CVE-2005-0972 CVE-2005-0975

Description: Multiple vulnerabilities have been reported in Mac OS X, which can be exploited by malicious, local users to cause a DoS (Denial of Service) or gain escalated privileges. 1) An integer overflow in the "searchfs()" system call when handling the sizeofsearchparams1 and sizeofsearchparams2 variables in a fssearchblock structure can be exploited to cause a buffer overflow. Successful exploitation may allow execution of arbitrary code with escalated privileges. The vulnerability has been reported in Mac OS X 10.3.4 as of 22nd June 2004 (Darwin kernel xnu-517.7.7). Other versions may also be affected. Reportedly, several older NetBSD vulnerabilities including a signedness error in the "semop()" system call still affect Mac OS X (see other references for more information). 2) Signedness errors in the "parse_machfile()" function within the Mach-O loader can be exploited to crash the system via a specially crafted Mach-O header. The vulnerability has been reported in Mac OS X 10.3.7 and prior. Solution: The vulnerabilities have been fixed in Mac OS X 10.3.9 Update. Mac OS X Combined Update 10.3.9: http://www.apple.com/support/downloads/macosxcombinedupdate1039.html Mac OS X Server Update 10.3.9: http://www.apple.com/support/downloads/macosxserverupdate1039.html Mac OS X Server Update 10.3.9 (Combo): http://www.apple.com/support/downloads/macosxserverupdate1039combo.html Mac OS X Update 10.3.9: http://www.apple.com/support/downloads/macosxupdate1039.html Provided and/or discovered by: 1) Immunity 2) nemo, felinemenace.org. Changelog: 2005-01-26: Updated advisory. 2005-04-16: Updated "Solution" section. 2005-04-29: Updated advisory. Original Advisory: Immunity: http://www.immunitysec.com/downloads/nukido.pdf felinemenace.org: http://www.felinemenace.org/advisories/macosx.txt Other References: Old NetBSD advisory: ftp://ftp.NetBSD.org/pub/NetBSD/security/advisories/NetBSD-SA2001-015.txt.asc

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