Name: CVE-2015-8701: Off-by-one Error
Creator: Rapid7
Published: 2016-12-29T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2015-8701, CWE-193, CVSS 6.5, EPSS 0.0007

QEMU (aka Quick Emulator) built with the Rocker switch emulation support is vulnerable to an off-by-one error. It happens while processing transmit (tx) descriptors in 'tx_consume' routine, if a descriptor was to have more than allowed (ROCKER_TX_FRAGS_MAX=16) fragments. A privileged user inside guest could use this flaw to cause memory leakage on the host or crash the QEMU process instance resulting in DoS issue.

CVSS Details

CVSS 3.1 Base Score: 6.5
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	Upgrade qemu	Jul 30, 2024	Dec 29, 2016
Freebsd	—	Upgrade qemu-develUpgrade qemu-sbrunoUpgrade qemuUpgrade qemu-user-static	Dec 10, 2025	Jan 3, 2016
Gentoo Linux	—	Upgrade app-emulation/qemu.	Oct 30, 2017	Dec 29, 2016

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CVSS Details

Covered by Rapid7

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