Zero-Day Advisory
Fortinet Discovers MSRawImage Store Uncomrpessed DNG Out-of-bound Write Vulnerability
Summary
Fortinet's FortiGuard Labs has discovered out-of-bounds memory write vulnerability in Microsoft Raw Image Extension.
The Raw Image Extension adds native viewing support for images captured in raw file formats produced by many mid- to high-end digital cameras
The out-of-bounds memory write vulnerability exists due to unsanitized user-controlled data crafted in a raw image file parsed by a vulnerable component. An attacker who successfully exploited the vulnerability could obtain remote code execution on the user's system.
Solutions
Users should apply the solution provided by Microsoft.
Timeline
Fortinet reported the vulnerability to Microsoft on March 30, 2021
Microsoft confirmed the vulnerability on April 01, 2021
Microsoft released a patch for the vulnerability on July 13, 2021