CVE-2017-9373

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-06-16 · updated 2026-06-17
Weakness: CWE-401

Description

Memory leak in QEMU (aka Quick Emulator), when built with IDE AHCI Emulation support, allows local guest OS privileged users to cause a denial of service (memory consumption) by repeatedly hot-unplugging the AHCI device.

Affected products

Debian Linux: 8.0, 9.0
QEMU: through 2.8.1.1; 2.9.0-rc0

References

http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d68f0f778e7f4fbd674627274267f269e40f0b04
http://www.debian.org/security/2017/dsa-3920
http://www.openwall.com/lists/oss-security/2017/06/05/1
http://www.securityfocus.com/bid/98921
https://access.redhat.com/errata/RHSA-2017:2392
https://access.redhat.com/errata/RHSA-2017:2408
https://bugzilla.redhat.com/show_bug.cgi?id=1458270
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=d68f0f778e7f4fbd674627274267f269e40f0b04
http://www.debian.org/security/2017/dsa-3920
http://www.openwall.com/lists/oss-security/2017/06/05/1
http://www.securityfocus.com/bid/98921

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