CVE-2020-10761
published 2020-06-09CVE-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…
PriorityP428medium5CVSS 3.1
AVNACLPRLUINSCCNINAL
EPSS
1.80%
76.0th percentile
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.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | qemu | < qemu 1:5.0-6 (bookworm) | qemu 1:5.0-6 (bookworm) |
| msrc | cbl_mariner_1.0_arm | — | — |
| msrc | cbl_mariner_1.0_x64 | — | — |
| msrc | cm1_qemu-kvm_4.2.0-21_on_cbl_mariner_1.0 | — | — |
| opensuse | leap | — | — |
| qemu | qemu | < 5.0.1 | 5.0.1 |
| qemu | qemu | >= 0 < 1:5.0-6 | 1:5.0-6 |
| qemu | qemu | >= 0 < 1:5.0-6 | 1:5.0-6 |
| qemu | qemu | >= 0 < 1:5.0-6 | 1:5.0-6 |
| qemu | qemu | >= 0 < 1:5.0-6 | 1:5.0-6 |
| qemu | qemu | >= 0 < 1:2.5+dfsg-5ubuntu10.45 | 1:2.5+dfsg-5ubuntu10.45 |
| qemu | qemu | >= 0 < 1:2.11+dfsg-1ubuntu7.31 | 1:2.11+dfsg-1ubuntu7.31 |
| qemu | qemu | >= 0 < 1:4.2-3ubuntu6.4 | 1:4.2-3ubuntu6.4 |
| red_hat | qemu | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.15.0MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:P
osv6.5MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_debian5.0MEDIUM
vendor_msrc5.0MEDIUM
vendor_redhat5.0MEDIUM
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Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2020-08-19·CVSS 6.5
CVE-2020-10756 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Ziming Zhang and VictorV discovered that the QEMU SLiRP networking
implementation incorrectly handled replying to certain ICMP echo requests.
An attacker inside a guest could possibly use this issue to leak host
memory to obtain sensitive information. This issue only affected Ubuntu
18.04 LTS. (CVE-2020-10756)
Eric Blake and Xueqiang Wei discovered that the QEMU NDB implementation
incorrectly handled certain requests. A remote attacker could possibly use
this issue to cause QEMU to crash, resulting in a denial of service. This
issue only affected Ubuntu 20.04 LTS. (CVE-2020-10761)
Ziming Zhang discovered that the QEMU SM501 graphics driver incorrectly
handled certain operations. An attacker inside a guest
Microsoft
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
vendor_msrc·2020-06-09·CVSS 5.0
CVE-2020-10761 [MEDIUM] CWE-617 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
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we b
Red Hat
QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client
vendor_redhat·2020-06-08·CVSS 5.0
CVE-2020-10761 [MEDIUM] CWE-617 QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client
QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client
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.
An assertion failure issue was found in the Network Block Device(NBD) Server of the QEMU. 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.
Package: kvm (Red Hat Enterprise Lin
Debian
CVE-2020-10761: qemu - An assertion failure issue was found in the Network Block Device(NBD) Server in ...
vendor_debian·2020·CVSS 5.0
CVE-2020-10761 [MEDIUM] CVE-2020-10761: qemu - An assertion failure issue was found in the Network Block Device(NBD) Server in ...
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.
Scope: local
bookworm: resolved (fixed in 1:5.0-6)
bullseye: resolved (fixed in 1:5.0-6)
forky: resolved (fixed in 1:5.0-6)
sid: resolved (fixed in 1:5.0-6)
trixie: resolved (fixed in 1:5.0-6)
GHSA
GHSA-qm9j-3g67-35f8: An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5
ghsa_unreviewed·2022-05-24
CVE-2020-10761 [MEDIUM] CWE-617 GHSA-qm9j-3g67-35f8: An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5
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.
OSV
qemu vulnerabilities
osv·2020-08-19·CVSS 6.5
CVE-2020-10756 [MEDIUM] qemu vulnerabilities
qemu vulnerabilities
Ziming Zhang and VictorV discovered that the QEMU SLiRP networking
implementation incorrectly handled replying to certain ICMP echo requests.
An attacker inside a guest could possibly use this issue to leak host
memory to obtain sensitive information. This issue only affected Ubuntu
18.04 LTS. (CVE-2020-10756)
Eric Blake and Xueqiang Wei discovered that the QEMU NDB implementation
incorrectly handled certain requests. A remote attacker could possibly use
this issue to cause QEMU to crash, resulting in a denial of service. This
issue only affected Ubuntu 20.04 LTS. (CVE-2020-10761)
Ziming Zhang discovered that the QEMU SM501 graphics driver incorrectly
handled certain operations. An attacker inside a guest could use this issue
to cause QEMU to crash, resulting in a d
OSV
CVE-2020-10761: An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5
osv·2020-06-09·CVSS 5.0
CVE-2020-10761 [MEDIUM] CVE-2020-10761: An assertion failure issue was found in the Network Block Device(NBD) Server in all QEMU versions before QEMU 5
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.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-10761 qemu: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client [fedora-all]
bugzilla·2020-06-09·CVSS 5.0
CVE-2020-10761 [MEDIUM] CVE-2020-10761 qemu: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client [fedora-all]
CVE-2020-10761 qemu: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this iss
Bugzilla
CVE-2020-10761 QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client
bugzilla·2020-06-03·CVSS 5.0
CVE-2020-10761 [MEDIUM] CVE-2020-10761 QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client
CVE-2020-10761 QEMU: nbd: reachable assertion failure in nbd_negotiate_send_rep_verr via remote client
Quick Emulator(Qemu) built with the Network Block Device(NBD) Server support is vulnerable to a crash via assertion failure. A nbd-client can cause denial of service by aborting QEMU as NBD server with a spec-compliant request that is near the boundary of maximum length permitted. A remote user/process could use this flaw to crash the qemu-nbd server resulting in DoS.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg02031.html
Issue introduced since QEMU v4.2
-> https://git.qemu.org/?p=qemu.git;a=commit;h=93676c88d7a5cd5971de94f9091eff8e9773b1af
- It allowed nbd-client to send longer export names
Discussion:
Acknowledgments:
Name: Eric Blake (redhat.com),
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10761https://security.gentoo.org/glsa/202011-09https://security.netapp.com/advisory/ntap-20200731-0001/https://usn.ubuntu.com/4467-1/https://www.openwall.com/lists/oss-security/2020/06/09/1http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00086.htmlhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10761https://security.gentoo.org/glsa/202011-09https://security.netapp.com/advisory/ntap-20200731-0001/https://usn.ubuntu.com/4467-1/https://www.openwall.com/lists/oss-security/2020/06/09/1
2020-06-09
Published