New subject: [Bug 1571609] CVE-2017-12086 blender: Integer overflow in BKE_mesh_calc_normals_tessface potentially leading to code execution

25 Apr 2018


      https://bugzilla.redhat.com/show_bug.cgi?id=1571609
Bug ID: 1571609
           Summary: CVE-2017-12086 blender: Integer overflow in
                    BKE_mesh_calc_normals_tessface potentially leading to
                    code execution
           Product: Security Response
         Component: vulnerability
          Keywords: Security
          Severity: high
          Priority: high
          Assignee: security-response-team@redhat.com
          Reporter: amaris@redhat.com
                CC: design-devel@lists.fedoraproject.org,
                    hobbes1069@gmail.com, kwizart@gmail.com,
                    luya_tfz@thefinalzone.net, negativo17@gmail.com,
                    promac@gmail.com
An exploitable integer overflow exists in the 'BKE_mesh_calc_normals_tessface'
functionality of the Blender open-source 3d creation suite. A specially crafted
.blend file can cause an integer overflow resulting in a buffer overflow which
can allow for code execution under the context of the application. An attacker
can convince a user to open a .blend file in order to trigger this
vulnerability.
External References:
https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0438
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[Bug 1571609] New: CVE-2017-12086 blender: Integer overflow in BKE_mesh_calc_normals_tessface potentially leading to code execution