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Windows: information disclosure via JXR
Synthesis of the vulnerability
An attacker can invite the victim the display a malicious PNG image, to read a memory fragment of Windows, in order to obtain sensitive information.
Impacted systems: Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 7, Windows 8, Windows RT, Windows Vista.
Severity of this alert: 2/4.
Consequences of an intrusion: data reading.
Pirate's origin: document.
Creation date: 10/03/2015.
Références of this alert: 3035126, CERTFR-2015-AVI-105, CVE-2015-0076, MS15-029, VIGILANCE-VUL-16373.
Description of the vulnerability
The Windows system analyzes JXR (JPEG XR) images before displaying them.
However, it does not initialize a memory area before returning it to the user.
An attacker can therefore invite the victim the display a malicious JXR image, to read a memory fragment of Windows, in order to obtain sensitive information.
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