The version of Adobe Reader installed on the remote host is earlier than 10.1 / 9.4.5 / 8.3.  Such versions are reportedly affected by multiple vulnerabilities :

  - Multiple buffer overflow vulnerabilities exist that     could lead to code execution. (CVE-2011-2094,     CVE-2011-2095, CVE-2011-2097)

  - A heap overflow vulnerability exists that could lead to     code execution. (CVE-2011-2096)

  - Multiple memory corruption vulnerabilities exist that     could lead to code execution. (CVE-2011-2098,     CVE-2011-2099, CVE-2011-2103, CVE-2011-2105)

  - Multiple memory corruption vulnerabilities exist that     could cause the application to crash. (CVE-2011-2104,     CVE-2011-2105)

  - A DLL loading vulnerability exists that could lead to     code execution. (CVE-2011-2100)

  - A cross document script execution vulnerability exists     that could lead to code execution. (CVE-2011-2101)

  - A security bypass vulnerability exists that could lead     to bypassing security restrictions. (CVE-2011-2102)

The version of Adobe Reader installed on the remote Mac OS X host is prior to 10.1, 9.4.5, or 8.3. It is, therefore, affected by the following vulnerabilities :

  - Multiple buffer overflow conditions exist that allow an     attacker to execute arbitrary code. (CVE-2011-2094,     CVE-2011-2095, CVE-2011-2097)

  - A heap overflow condition exists that allows an attacker     to execute arbitrary code. (CVE-2011-2096)

  - Multiple memory corruption issues exist that allow an     attacker to execute arbitrary code. (CVE-2011-2098,     CVE-2011-2099, CVE-2011-2103, CVE-2011-2105,     CVE-2011-2106)

  - Multiple memory corruption issues exist that allow an     attacker to crash the application. (CVE-2011-2104,     CVE-2011-2105)

  - A DLL loading vulnerability exists that allows an     attacker to execute arbitrary code. (CVE-2011-2100)

  - A cross-document script execution vulnerability exists     that allows an attacker to execute arbitrary code.
    (CVE-2011-2101)

  - A unspecified vulnerability exists that allows an     attacker to bypass security restrictions. (CVE-2011-2102)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Adobe Acrobat installed on the remote host is earlier than 10.1 / 9.4.5 / 8.3.  Such versions are reportedly affected by multiple vulnerabilities :

  - Multiple buffer overflow vulnerabilities exist that     could lead to code execution. (CVE-2011-2094,     CVE-2011-2095, CVE-2011-2097)

  - A heap overflow vulnerability exists that could lead to     code execution. (CVE-2011-2096)

  - Multiple memory corruption vulnerabilities exist that     could lead to code execution. (CVE-2011-2098,     CVE-2011-2099, CVE-2011-2103, CVE-2011-2105)

  - Multiple memory corruption vulnerabilities exist that     could cause the application to crash. (CVE-2011-2104,     CVE-2011-2105)

  - A DLL loading vulnerability exists that could lead to     code execution. (CVE-2011-2100)

  - A cross document script execution vulnerability exists     that could lead to code execution. (CVE-2011-2101)

  - A security bypass vulnerability exists that could lead     to bypassing security restrictions. (CVE-2011-2102)

Updated acroread packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 Extras and Red Hat Enterprise Linux 5 and 6 Supplementary.

The Red Hat Security Response Team has rated this update as having critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Adobe Reader allows users to view and print documents in Portable Document Format (PDF).

This update fixes multiple security flaws in Adobe Reader. These flaws are detailed on the Adobe security page APSB11-24, listed in the References section. A specially crafted PDF file could cause Adobe Reader to crash or, potentially, execute arbitrary code as the user running Adobe Reader when opened. (CVE-2011-2431, CVE-2011-2432, CVE-2011-2433, CVE-2011-2434, CVE-2011-2435, CVE-2011-2436, CVE-2011-2437, CVE-2011-2438, CVE-2011-2439, CVE-2011-2440, CVE-2011-2442)

This update also fixes multiple security flaws in Adobe Flash Player embedded in Adobe Reader. These flaws are detailed on the Adobe security pages APSB11-21 and APSB11-26, listed in the References section.

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. (CVE-2011-2130, CVE-2011-2134, CVE-2011-2135, CVE-2011-2136, CVE-2011-2137, CVE-2011-2138, CVE-2011-2139, CVE-2011-2140, CVE-2011-2414, CVE-2011-2415, CVE-2011-2416, CVE-2011-2417, CVE-2011-2424, CVE-2011-2425, CVE-2011-2426, CVE-2011-2427, CVE-2011-2428, CVE-2011-2430)

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. (CVE-2011-2444)

This update also fixes an information disclosure flaw in Adobe Flash Player. (CVE-2011-2429)

All Adobe Reader users should install these updated packages. They contain Adobe Reader version 9.4.6, which is not vulnerable to these issues. All running instances of Adobe Reader must be restarted for the update to take effect.

ID	Name	Product	Family	Published	Updated	Severity
55144	Adobe Reader < 10.1 / 9.4.5 / 8.3 Multiple Vulnerabilities (APSB11-16)	Nessus	Windows	6/15/2011	6/27/2018	high
55421	Adobe Reader < 10.1 / 9.4.5 / 8.3 Multiple Vulnerabilities (APSB11-12, APSB11-12, APSB11-16) (Mac OS X)	Nessus	MacOS X Local Security Checks	6/24/2011	7/14/2018	high
55143	Adobe Acrobat < 10.1 / 9.4.5 / 8.3 Multiple Vulnerabilities (APSB11-16)	Nessus	Windows	6/15/2011	6/27/2018	high
56740	RHEL 4 / 5 / 6 : acroread (RHSA-2011:1434)	Nessus	Red Hat Local Security Checks	11/9/2011	1/14/2021	critical

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