Roundup: [oss-security] CVE-2017-6355 Virglrenderer: integer overflow while creating shader object

[grahamc]

Here is a report from the oss-security mailing list for Vulnerability Roundup 27.

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Instructions:

Identification

Identify if we have the software, in 16.09, 17.03, and unstable. Then determine if we are vulnerable, and make a comment with your findings. It can also be helpful to specify if you think there is a patch, or if it can be fixed via a general update.

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unstable: we are not vulnerable (link to the package)
17.03: we are vulnerable (link to the package)
16.09: we don't have it packaged

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Patching

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fixed:

release-16.09: abc123

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Upon Completion ...

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Info

Triage Indicator:

-needs-triage +roundup27 thread:0000000000003e77

• File Search: https://search.nix.gsc.io/?q=virglrenderer&i=fosho&repos=nixos-nixpkgs
• GitHub Search: https://github.com/NixOS/nixpkgs/search?utf8=%E2%9C%93&q=virglrenderer+in%3Apath&type=Code

Should the search term be changed from virglrenderer? Suggest a new package search by commenting:

-suggested:virglrenderer +suggested:correctPackageName thread:0000000000003e77

Known CVEs: CVE-2017-6355

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Mon, 27 Feb 2017 23:26:54 +0530 (IST) P J P , alpine.LFD.2.20.1702272324550.10165@wniryva

   Hello,

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

This issue was reported by Li Qiang of 360.cn Inc.

'CVE-2017-6355' assigned via -> http://cveform.mitre.org/

Thank you.
--
Prasad J Pandit / Red Hat Product Security Team
47AF CE69 3A90 54AA 9045 1053 DD13 3D32 FE5B 041F

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[grahamc]

We don't package virglrenderer.