High 7.5

Vulnerability in QEMU NBD Server

CVE-2024-7409 First seen on SecPulse Aug 5, 2024

AI summary

Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.

A vulnerability tracked as CVE-2024-7409 has been found in QEMU NBD Server.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "QEMU NBD Server CVE-2024-7409" on the vendor's site.

CVE-2024-7409 (QEMU NBD Server) — CWE-662 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

What is the problem

A vulnerability (CWE-662) exists in QEMU NBD Server.

Affected scope

Check the vendor advisory for the affected versions of QEMU NBD Server.

Severity

Severity: High (CVSS 7.5/10). Risk of unauthorized operations or information disclosure.

How to fix

Update to the patched release per vendor advisory.

Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

1
Identify exposureidentify
```
Audit SBOM/dependencies for affected components.
```
資産台帳・SBOM・依存マニフェストで QEMU NBD Server を使っているサービスとバージョンを洗い出す。
2
Post-deployment verificationverify
```
Confirm patched version is live in production
```
パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Fix status by distribution

Records published by each distribution for this CVE. Fixed versions differ by release; check each link.

Debian DEBIAN-CVE-2024-7409 qemu Fix available
Ubuntu UBUNTU-CVE-2024-7409 qemu Fix available

Original description The description as published by the source.

A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of service (DoS) attack via improper synchronization during socket closure when a client keeps a socket open as the server is taken offline.

Source: NIST National Vulnerability Database NVD

AI summary

Response actions

Fix status by distribution

References