Advisory Details

May 15th, 2015

Microsoft Windows Type 1 Font callother Opcode Heap Buffer Underflow Remote Code Execution Vulnerability

CVE ID	CVE-2015-0092
CVSS SCORE	6.9, AV:L/AC:M/Au:N/C:C/I:C/A:C
AFFECTED VENDORS	Microsoft
AFFECTED PRODUCTS	Windows
VULNERABILITY DETAILS	This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of Microsoft Windows. 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 the handling of certain Type 1 fonts. By providing a crafted font, an attacker can cause a negative offset to be used when calculating a heap buffer address. This would allow an attacker to execute arbitrary code as SYSTEM.
ADDITIONAL DETAILS	Microsoft has issued an update to correct this vulnerability. More details can be found at: https://technet.microsoft.com/en-us/library/security/ms15-021.aspx
DISCLOSURE TIMELINE	2015-03-04 - Vulnerability reported to vendor 2015-05-15 - Coordinated public release of advisory
CREDIT	s3tm3m

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