Description
An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1. This flaw occurs when an nbd-client sends a spec-compliant request that is near the boundary of maximum permitted request length. A remote nbd-client could use this flaw to crash the qemu-nbd server resulting in a denial of service.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
None
Integrity
None
Availability
Low
Affected products
- Red Hat / QEMUall QEMU versions before QEMU 5.0.1 – all QEMU versions before QEMU 5.0.1
References
- MAILING_LISThttps://www.openwall.com/lists/oss-security/2020/06/09/1
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10761
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html
- MISChttps://security.netapp.com/advisory/ntap-20200731-0001/
- VENDOR_ADVISORYhttps://usn.ubuntu.com/4467-1/
- MISChttps://security.gentoo.org/glsa/202011-09