ID

VAR-201103-0276

CVE

CVE-2011-0176

TITLE

Apple Mac OS X of Apple Type Services Vulnerable to buffer overflow

DESCRIPTION

Multiple buffer overflows in Apple Type Services (ATS) in Apple Mac OS X before 10.6.7 allow remote attackers to execute arbitrary code via a document that contains a crafted embedded Type 1 font. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within how the Type1Scaler library processes a specially formatted compact font file. When processing this file, the application will corrupt memory outside the bounds of an allocated buffer. This can lead to code execution under the context of the application that utilizes the library. Apple Mac OS X is prone to multiple buffer-overflow vulnerabilities because it fails to properly bounds check user-supplied input. Failed exploit attempts will result in a denial-of-service condition. Versions prior to OS X 10.6.7 are vulnerable. NOTE: This issue was previously discussed in BID 46950 (Apple Mac OS X Prior to 10.6.7 Multiple Security Vulnerabilities) but has been given its own record to better document it. Apple Mac OS X is the American Apple ( Apple ) company for Mac A set of special operating systems developed by computers. ZDI-11-108: Mac OS X Compact Font Format Decoder Remote Code Execution Vulnerability http://www.zerodayinitiative.com/advisories/ZDI-11-108 March 22, 2011 -- CVE ID: CVE-2011-0176 -- CVSS: 10, (AV:N/AC:L/Au:N/C:C/I:C/A:C) -- Affected Vendors: Apple -- Affected Products: Apple Preview -- TippingPoint(TM) IPS Customer Protection: TippingPoint IPS customers have been protected against this vulnerability by Digital Vaccine protection filter ID 10952. -- Vendor Response: Apple has issued an update to correct this vulnerability. More details can be found at: http://support.apple.com/kb/HT4581 -- Disclosure Timeline: 2010-12-01 - Vulnerability reported to vendor 2011-03-22 - Coordinated public release of advisory -- Credit: This vulnerability was discovered by: * geekable -- About the Zero Day Initiative (ZDI): Established by TippingPoint, The Zero Day Initiative (ZDI) represents a best-of-breed model for rewarding security researchers for responsibly disclosing discovered vulnerabilities. Researchers interested in getting paid for their security research through the ZDI can find more information and sign-up at: http://www.zerodayinitiative.com The ZDI is unique in how the acquired vulnerability information is used. TippingPoint does not re-sell the vulnerability details or any exploit code. Instead, upon notifying the affected product vendor, TippingPoint provides its customers with zero day protection through its intrusion prevention technology. Explicit details regarding the specifics of the vulnerability are not exposed to any parties until an official vendor patch is publicly available. Furthermore, with the altruistic aim of helping to secure a broader user base, TippingPoint provides this vulnerability information confidentially to security vendors (including competitors) who have a vulnerability protection or mitigation product. Our vulnerability disclosure policy is available online at: http://www.zerodayinitiative.com/advisories/disclosure_policy/ Follow the ZDI on Twitter: http://twitter.com/thezdi . ---------------------------------------------------------------------- Meet Secunia @ Microsoft Management Summit (MMS) in Las Vegas, USA (21-25 March). http://secunia.com/company/events/mms_2011/ ---------------------------------------------------------------------- TITLE: Apple Mac OS X Multiple Vulnerabilities SECUNIA ADVISORY ID: SA43814 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/43814/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=43814 RELEASE DATE: 2011-03-22 DISCUSS ADVISORY: http://secunia.com/advisories/43814/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/43814/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=43814 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: Apple has issued a security update for Mac OS X, which fixes multiple vulnerabilities. 1) A divide-by-zero error in AirPort when handling Wi-Fi frames can be exploited to cause a system reset. 2) Multiple vulnerabilities in Apache can be exploited by malicious people to disclose potentially sensitive information and by malicious users and malicious people to cause a DoS (Denial of Service). For more information: SA40206 3) A format string error within AppleScript Studio when handling certain commands via dialogs can be exploited to potentially execute arbitrary code. 8) An integer overflow error in bzip2 can be exploited to terminate an application using the library or execute arbitrary code via a specially crafted archive. For more information: SA41452 9) An error within the "FSFindFolder()" API in CarbonCore when used with the "kTemporaryFolderType" flag can be exploited to disclose the contents of arbitrary directories. 10) Multiple errors in ClamAV can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system. For more information: SA41503 SA42426 11) An unspecified error in the handling of embedded fonts in CoreText can be exploited to corrupt memory when a specially crafted document is viewed or downloaded. 12) An integer overflow error within the handling of the F_READBOOTSTRAP ioctl in HFS, HFS+, and HFS+J filesystems can be exploited to read arbitrary files. 13) An error in ImageIO within the handling of JPEG files can be exploited to cause a heap-based buffer overflow. 15) An error in libTIFF within the handling of JPEG encoded TIFF files can be exploited to cause a buffer overflow. 16) An error in libTIFF within the handling of CCITT Group 4 encoded TIFF files can be exploited to cause a buffer overflow. 17) An integer overflow error in ImageIO within the handling of JPEG encoded TIFF files can be exploited to potentially execute arbitrary code. 18) Multiple errors in Image RAW when handling Canon RAW image files can be exploited to cause buffer overflows. 19) An error in the Install Helper when handling URLs can be exploited to install an arbitrary agent by tricking the user into visiting a malicious website. 20) Multiple errors in Kerberos can be exploited by malicious users and malicious people to conduct spoofing attacks and bypass certain security features. 22) An integer truncation error within Libinfo when handling NFS RPC packets can be exploited to cause NFS RPC services to become unresponsive. 23) An error exists in the libxml library when traversing the XPath. For more information: SA42175 24) A double free error exists in the libxml library when handling XPath expressions. For more information: SA42721 25) Two errors in Mailman can be exploited by malicious users to conduct script insertion attacks. For more information: SA41265 26) Multiple errors in PHP can be exploited by malicious users and malicious people to bypass certain security restrictions and by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system. For more information: SA39573 SA41724 27) Multiple errors in PHP can be exploited by malicious users and malicious people to bypass certain security restrictions. For more information: SA41724 28) An error in the OfficeImport framework when processing records containing formulas shared between multiple cells can be exploited to corrupt memory and potentially execute arbitrary code. 29) An error in QuickLook when handling certain Microsoft Office files can be exploited to corrupt memory when a specially crafted document is downloaded. 30) Multiple unspecified errors in QuickTime when handling JPEG2000, FlashPix, and panorama atoms in QTVR (QuickTime Virtual Reality) movie files can be exploited to corrupt memory via specially crafted files. 31) An integer overflow error in QuickTime when handling certain movie files can be exploited to potentially execute arbitrary code when a specially crafted file is viewed. 32) An error within QuickTime plug-in when handling cross-site redirects can be exploited to disclose video data. 33) An integer truncation error within the Ruby BigDecimal class can be exploited to potentially execute arbitrary code. This vulnerability only affects 64-bit Ruby processes. 34) A boundary error in Samba can be exploited by malicious people to potentially compromise a vulnerable system. For more information: SA41354 35) A security issue in Subversion can be exploited by malicious people to bypass certain security restrictions. For more information: SA41652 36) A weakness in Terminal uses SSH version 1 as the default protocol version when using ssh via the "New Remote Connection" dialog. 37) Some vulnerabilities in FreeType can be exploited to cause a DoS (Denial of Service) or potentially compromise an application using the library. For more information: SA41738 SOLUTION: Update to version 10.6.7 or apply Security Update 2011-001. PROVIDED AND/OR DISCOVERED BY: 15, 16, 33) Reported by the vendor. The vendor credits: 3) Alexander Strange. 5) Christoph Diehl of Mozilla, Felix Grobert of the Google Security Team, Marc Schoenefeld of Red Hat Security Response Team, and Tavis Ormandy and Will Drewry of Google Security Team. 6) Felix Grobert, Google Security Team and geekable via ZDI. 7) Marc Schoenefeld, Red Hat Security Response Team. 11) Christoph Diehl, Mozilla. 12) Dan Rosenberg, Virtual Security Research. 13) Andrzej Dyjak via iDefense. 14) Harry Sintonen. 17) Dominic Chell, NGS Secure. 18) Paul Harrington, NGS Secure. 19) Aaron Sigel, vtty.com. 21) Jeff Mears. 22) Peter Schwenk, University of Delaware. 28) Tobias Klein via iDefense. 29) Charlie Miller and Dion Blazakis via ZDI. 30) Will Dormann of CERT/CC, Damian Put and an anonymous researcher via ZDI, and Rodrigo Rubira Branco of Check Point Vulnerability Discovery Team. 31) Honggang Ren, Fortinet's FortiGuard Labs. 32) Nirankush Panchbhai and Microsoft Vulnerability Research (MSVR). 36) Matt Warren, HNW Inc. ORIGINAL ADVISORY: Apple: http://support.apple.com/kb/HT4581 iDefense: http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=898 OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. 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AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

buffer overflow

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

geekable

SOURCES

LAST UPDATE DATE

2025-04-11T21:50:49.965000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE