Divide by zero in QEMU - CVE-2017-17381
Published: March 23, 2018
Vulnerability identifier: #VU11234
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-17381
CWE-ID: CWE-369
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an adjacent attacker to cause DoS condition on the target system.
The weakness exists due to divide by zero when unsetting vring alignment while updating Virtio rings. An adjacent attacker can cause the service to crash.
The weakness exists due to divide by zero when unsetting vring alignment while updating Virtio rings. An adjacent attacker can cause the service to crash.
Affected software
QEMU
Gentoo Linux
Debian Linux
SUSE Linux
Fedora
qemu
Gentoo Linux
Debian Linux
SUSE Linux
Fedora
qemu
How to mitigate CVE-2017-17381
Update to version 2.11.1 or later.
qemu - update to 2.10.2-1.fc27