Home/CVE/An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5.0.1. Thi
CVE

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. Thi

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.

MEDIUM · CVSS 5 EPSS 0.00841
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-617Reachable Assertion
CWE-617Reachable Assertion
▤

Affected Products & Versions

4
qemu< 5.0.1
redhat enterprise linuxall versions
opensuse leapall versions
canonical ubuntu linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumPotentially Suspicious Usage Of Qemu
▣

Scoring & Timeline

5
MEDIUM · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Jun 2020 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
⚑

Vendor Advisories

6
suse-csafopenSUSE-SU-2024:11287-1
usnUSN-4467-1
msrcCVE-2020-10761
suse-csafopenSUSE-SU-2020:1108-1
suse-csafSUSE-SU-2020:2015-1
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.htmlMailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10761Issue TrackingThird Party Advisory
https://security.gentoo.org/glsa/202011-09Third Party Advisory
https://security.netapp.com/advisory/ntap-20200731-0001/Third Party Advisory
https://usn.ubuntu.com/4467-1/Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/06/09/1Mailing ListPatchThird Party Advisory
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