Denial of service in QEMU - CVE-2017-7539
Published: September 6, 2017
Vulnerability identifier: #VU8113
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7539
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor:
QEMU
QEMU
Affected software:
QEMU
QEMU
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on a targeted system.
The weakness exists due to an assertion failure when handling malicious input. A remote attacker can submit a specially crafted data during initial connection negotiation and cause the qemu-nbd server to stop functioning.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists due to an assertion failure when handling malicious input. A remote attacker can submit a specially crafted data during initial connection negotiation and cause the qemu-nbd server to stop functioning.
Successful exploitation of the vulnerability results in denial of service.
How to mitigate CVE-2017-7539
Install update from vendor's website.
https://git.qemu.org/?p=qemu.git;a=patch;h=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b
https://git.qemu.org/?p=qemu.git;a=patch;h=2b0bbc4f8809c972bad134bc1a2570dbb01dea0b