Vulnerability in Qemu
CVE-2020-10761
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.
EPSS: 0.018 (76.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L.
Affected products
- Qemu
- Canonical Ubuntu_linux — versions 16.04, 18.04, 20.04
- Opensuse Leap — versions 15.2
- Red Hat Qemu: — versions all QEMU versions before QEMU 5.0.1
- Redhat Enterprise_linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-10761?
- CVE-2020-10761 is a medium-severity vulnerability in Qemu, classified under Reachable Assertion. CVSS score: 5.0/10. Published 2020-06-09.
- How severe is CVE-2020-10761?
- Medium severity. CVSS v3 base score is 5.0 out of 10.
- Is CVE-2020-10761 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.