---------------------------------------------------------------------- SC Magazine awards the Secunia CSI a 5-Star rating Top-level rating for ease of use, performance, documentation, support, and value for money. Read more and get a free trial here: http://secunia.com/blog/296 ---------------------------------------------------------------------- TITLE: Hancom Office Hanword Image Processing Integer Overflow Vulnerabilities SECUNIA ADVISORY ID: SA47386 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/47386/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=47386 RELEASE DATE: 2012-02-07 DISCUSS ADVISORY: http://secunia.com/advisories/47386/#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/47386/ 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=47386 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: Tielei Wang has discovered two vulnerabilities in Hancom Office 2010 SE, which can be exploited by malicious people to compromise a user's system. 1) An integer overflow error in the "ImportGR()" function within the JPG image filter module (HncJpeg10.flt) when allocating memory can be exploited to cause a heap-based buffer overflow via a specially crafted JPG image within a document file using overly large image dimension values. 2) An integer overflow error within the PNG image filter module (HncPng10.flt) when allocating memory can be exploited to cause a heap-based buffer overflow via a specially crafted PNG image within a document file using overly large image dimension values. Successful exploitation of the vulnerabilities may allow execution of arbitrary code, but requires tricking a user into opening a malicious file. The vulnerabilities are confirmed in version 8.5.5. Other versions may also be affected. SOLUTION: Do not open files from untrusted sources. PROVIDED AND/OR DISCOVERED BY: Tielei Wang via Secunia. OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- 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. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------