Vulnerability identifier: #VU7338
Vulnerability risk: Low
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
QEMU
Client/Desktop applications /
Virtualization software
Vendor: QEMU
Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists due to NULL pointer dereference in Network Block Device(NBD) Server support during a failed negotiation of a client. A remote attacker can cause the affected server to crash.
Successful exploitation of the vulnerability results in denial of service.
Mitigation
Install update from vendor's website.
Vulnerable software versions
QEMU: 2.7.0 - 2.9.0
External links
https://seclists.org/oss-sec/2017/q2/454
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.