Gentoo Linux Security Advisory GLSA 200901-09 - Adobe Reader is vulnerable to execution of arbitrary code. An unspecified vulnerability can be triggered by a malformed PDF document, as demonstrated by 2008-HI2.pdf. Versions less than 8.1.3 are affected.
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iDefense Security Advisory 11.04.08 - Remote exploitation of an out of bounds array access vulnerability in Adobe System Inc.'s Adobe Reader could allow an attacker to execute arbitrary code as the current user. The vulnerability specifically exists in code responsible for parsing Type 1 fonts. After allocating an area of memory, no bounds checking is performed. Subsequent access of this memory may result in modification of arbitrary memory, which in turn may result in arbitrary code execution. iDefense has confirmed the existence of this vulnerability in Adobe Reader version 8.1.1. Previous versions may also be affected.
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