CVE-2024-7409 — Improper Synchronization in Qemu

CWE-662 — Improper Synchronization7 documents6 sources
Severity
7.5HIGHNVD
OSV8.2
EPSS
1.6%
top 18.43%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
QemuDebian Qemu
Timeline
PublishedAug 5
Latest updateSep 11

Description

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.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/qemu< qemu 1:7.2+dfsg-7+deb12u8 (bookworm)
▶Debianqemu/qemu< 1:5.2+dfsg-11+deb11u5+3
▶Ubuntuqemu/qemu< 1:6.2+dfsg-2ubuntu6.27+1

🔴Vulnerability Details

3
OSV
qemu vulnerabilities↗2025-09-11
▶
GHSA
GHSA-7c7g-wccp-rrhj: A flaw was found in the QEMU NBD Server↗2024-08-05
▶
OSV
CVE-2024-7409: A flaw was found in the QEMU NBD Server↗2024-08-05
▶

📋Vendor Advisories

3
Ubuntu
QEMU vulnerabilities↗2025-09-11
▶
Red Hat
QEMU: Denial of Service via Improper Synchronization in QEMU NBD Server During Socket Closure↗2024-08-02
▶
Debian
CVE-2024-7409: qemu - A flaw was found in the QEMU NBD Server. This vulnerability allows a denial of s...↗2024
▶