CVE-2017-9524 — Improper Input Validation in Qemu

CWE-20 — Improper Input ValidationCWE-476 — NULL Pointer Dereference12 documents7 sources
Severity
7.5HIGHNVD
OSV7.8
EPSS
2.1%
top 15.99%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
QemuDebian QemuDebian Linux
Timeline
PublishedJul 6
Latest updateMay 13

Description

The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a denial of service (segmentation fault and server crash) by leveraging failure to ensure that all initialization occurs before talking to a client in the nbd_negotiate function.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶debiandebian/qemu< qemu 1:2.8+dfsg-7 (bookworm)
▶Debianqemu/qemu< 1:2.8+dfsg-7+3
▶Ubuntuqemu/qemu< 2.0.0+dfsg-2ubuntu1.36+3
▶NVDqemu/qemu2.9.1

Also affects: Debian Linux 9.0

Patches

Patch: www.openwall.com ↗Patch: lists.gnu.org ↗Patch: lists.gnu.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-3hp7-3fxw-3v9g: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a de↗2022-05-13
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OSV
qemu regression↗2017-09-20
▶
OSV
qemu vulnerabilities↗2017-09-13
▶
OSV
CVE-2017-9524: The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Block Device (NBD) Server support, allows remote attackers to cause a de↗2017-07-06
▶

📋Vendor Advisories

4
Ubuntu
QEMU regression↗2017-09-20
▶
Ubuntu
QEMU vulnerabilities↗2017-09-13
▶
Red Hat
Qemu: nbd: segmentation fault due to client non-negotiation↗2017-05-26
▶
Debian
CVE-2017-9524: qemu - The qemu-nbd server in QEMU (aka Quick Emulator), when built with the Network Bl...↗2017
▶

💬Community

3
Bugzilla
CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation↗2017-06-09
▶
Bugzilla
CVE-2017-9524 xen: Qemu: nbd: segmentation fault due to client non-negotiation [fedora-all]↗2017-06-09
▶
Bugzilla
CVE-2017-9524 Qemu: nbd: segmentation fault due to client non-negotiation [fedora-all]↗2017-06-09
▶