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Vulnerability of Symantec PGP, Encryption Desktop: privilege elevation

Synthesis of the vulnerability 

A local attacker can use two vulnerabilities of Symantec PGP/Encryption Desktop, in order to execute code with system privileges.
Impacted products: Symantec Encryption Desktop, PGP Desktop.
Severity of this bulletin: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 15/02/2013.
Références of this threat: BID-57170, BID-57835, CERTA-2013-AVI-135, CVE-2012-4351, CVE-2012-4352-ERROR, CVE-2012-6533, SYM13-001, VIGILANCE-VUL-12429.

Description of the vulnerability 

The Symantec PGP/Encryption Desktop product installs the pgpwded.sys driver. However, it is impacted by two vulnerabilities.

An attacker can trigger an integer overflow. [severity:2/4; BID-57170, CVE-2012-4351]

On Windows XP/2003, an attacker can trigger a buffer overflow. [severity:2/4; BID-57835, CVE-2012-4352-ERROR, CVE-2012-6533]

A local attacker can therefore use two vulnerabilities of Symantec PGP/Encryption Desktop, in order to execute code with system privileges.
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This security weakness impacts software or systems such as Symantec Encryption Desktop, PGP Desktop.

Our Vigil@nce team determined that the severity of this threat bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

This bulletin is about 2 vulnerabilities.

An attacker with a expert ability can exploit this threat.

Solutions for this threat 

Symantec Encryption Desktop: version 10.3.0 Maintenance Pack 1.
The version 10.3.0 Maintenance Pack 1 is fixed.
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