Red Hat Security Advisory 2011-1434-01 - This update fixes multiple security flaws in Adobe Reader. A PDF file with an embedded, specially-crafted SWF file could cause Adobe Reader to crash or, potentially, execute arbitrary code as the user running Adobe Reader when opened. A flaw in Adobe Flash Player could allow an attacker to conduct cross-site scripting (XSS) attacks if a victim were tricked into visiting a specially-crafted web page. Various other issues were also addressed.
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Zero Day Initiative Advisory 11-299 - This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Adobe Reader. 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 Adobe 2D.x3d PICT image parsing routines. When Adobe Reader parses an PICT image it uses a static buffer to store certain image header values. Due to insufficient checks for the end of the buffer it is possible to write outside the stack buffer. The resulting stack overflow could result in remote code execution under the context of the current user.
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