Bug 1427054 (CVE-2017-6355)

Summary: CVE-2017-6355 Virglrenderer: renderer: integer overflow while creating shader object
Product: [Other] Security Response Reporter: Prasad J Pandit <ppandit>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: airlied, marcandre.lureau
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Bug Blocks: 1411263    

Description Prasad J Pandit 2017-02-27 08:55:50 UTC
Virgil 3d project, used by Quick Emulator(Qemu) to implement 3D GPU support
for the virtio GPU, is vulnerable to an integer overflow issue. It could occur
when creating a shader object in vrend_create_shader().

A guest user/process could use this flaw to crash the Qemu process resulting
DoS.

Upstream patch:
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  -> https://cgit.freedesktop.org/virglrenderer/commit/?id=93761787b29f37fa627dea9082cdfc1a1ec608d6

Reference:
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  -> http://www.openwall.com/lists/oss-security/2017/02/27/3

Comment 1 Prasad J Pandit 2017-02-27 08:56:03 UTC
Acknowledgments:

Name: Li Qiang (360.cn Inc.)