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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
redhatCNA
5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 73%
VendorProductVersion
qemuqemu
𝑥
< 5.0.1
redhatenterprise_linux
8.0
redhatenterprise_linux
8.0
opensuseleap
15.2
canonicalubuntu_linux
16.04
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
qemu
bullseye
1:5.2+dfsg-11+deb11u3
fixed
buster
not-affected
stretch
not-affected
jessie
not-affected
bullseye (security)
1:5.2+dfsg-11+deb11u2
fixed
bookworm
1:7.2+dfsg-7+deb12u7
fixed
sid
1:9.1.1+ds-2
fixed
trixie
1:9.1.1+ds-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
qemu
focal
Fixed 1:4.2-3ubuntu6.4
released
eoan
ignored
bionic
not-affected
xenial
not-affected
trusty
not-affected
qemu-kvm
focal
dne
eoan
dne
bionic
dne
xenial
dne
trusty
dne
Common Weakness Enumeration
References
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10761
https://security.gentoo.org/glsa/202011-09
https://security.netapp.com/advisory/ntap-20200731-0001/
https://usn.ubuntu.com/4467-1/
https://www.openwall.com/lists/oss-security/2020/06/09/1
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10761
https://security.gentoo.org/glsa/202011-09
https://security.netapp.com/advisory/ntap-20200731-0001/
https://usn.ubuntu.com/4467-1/
https://www.openwall.com/lists/oss-security/2020/06/09/1