Reachable assertion in Qemu
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-617.
Summary
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| QEMU | Qemu | 2.10.1 | — | No fix listed | CNA |
- Qemu VendorQEMU Affected 2.10.1 Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | before 2.10.1 | Vulnerable | QEMU |
| cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* | 8 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* | 9 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* | 10 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:* | 11 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Red Hat |
| cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:* | 3.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Running on | Red Hat |
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions before 2.10.1 Vulnerable ·QEMU
- cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* Versions 8 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:openstack:11:*:*:*:*:*:*:* Versions 11 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
- cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Running on ·Red Hat
Remediation
Red Hat 7 advisories
- RHSA-2017:3473 Released 2017-12-14 · Red Hat rating Moderateqemu-kvm-rhev security update
- Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-img-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-rhev-10:2.9.0-16.el7_4.11 +1
- RHSA-2017:3472 Released 2017-12-14 · Red Hat rating Moderateqemu-kvm-rhev security update
- Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-img-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-rhev-10:2.9.0-16.el7_4.11 +1
- RHSA-2017:3474 Released 2017-12-14 · Red Hat rating Moderateqemu-kvm-rhev security and bug fix update
- Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-rhev-10:2.9.0-16.el7_4.11 +1
Show 4 more Red Hat advisories
- RHSA-2017:3466 Released 2017-12-14 · Red Hat rating Moderateqemu-kvm-rhev security and bug fix update
- Red Hat OpenStack Platform 11.0 qemu-img-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-rhev-10:2.9.0-16.el7_4.11 +1
- RHSA-2017:3470 Released 2017-12-14 · Red Hat rating Moderateqemu-kvm-rhev security and bug fix update
- Red Hat OpenStack Platform 9.0 qemu-img-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-rhev-10:2.9.0-16.el7_4.11 +1
- RHSA-2017:3471 Released 2017-12-14 · Red Hat rating Moderateqemu-kvm-rhev security and bug fix update
- Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.11, qemu-kvm-rhev-10:2.9.0-16.el7_4.11 +1
- RHSA-2017:2628 Released 2017-09-05 · Red Hat rating Moderateqemu-kvm-rhev security and bug fix update
- RHEV-H and VDSM for 7 Hosts qemu-img-rhev-10:2.9.0-16.el7_4.5, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.5, qemu-kvm-rhev-10:2.9.0-16.el7_4.5 +1
- Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.9.0-16.el7_4.5, qemu-kvm-common-rhev-10:2.9.0-16.el7_4.5, qemu-kvm-rhev-10:2.9.0-16.el7_4.5 +1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHEV-H and VDSM for 7 Hosts | Fixed | RHSA-2017:2628 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | Fixed | RHSA-2017:3473 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | Fixed | RHSA-2017:3472 |
| Red Hat OpenStack Platform 10.0 | Fixed | RHSA-2017:3474 |
| Red Hat OpenStack Platform 11.0 | Fixed | RHSA-2017:3466 |
| Red Hat OpenStack Platform 8.0 (Liberty) | Fixed | RHSA-2017:3471 |
| Red Hat OpenStack Platform 9.0 | Fixed | RHSA-2017:3470 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | Fixed | RHSA-2017:2628 |
Not affected: 4 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat OpenStack Platform 12 (Pike)
Timeline
- 2026-10-02 Threatist record created from CVE-2017-7539
- 2026-10-03 Alias added: GHSA-8vvg-hj6f-q4wj
References
Patch 2
Advisory 7
More Qemu vulnerabilities
- TI-2024-16148 QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI… CVSS 3.1HIGH 8.8
- TI-2022-02736 Uncontrolled resource consumption in QEMU CVSS 3.1HIGH 7.8
- TI-2023-02681 Qemu: 9pfs: improper access control on special files CVSS 3.1HIGH 7.1
- TI-2019-09678 The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command… CVSS 3.0CRITICAL 9.8
- TI-2024-03326 Qemu-kvm: net: assertion failure in update_sctp_checksum() CVSS 3.1MEDIUM 5.5
- TI-2023-22631 QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in… CVSS 3.1MEDIUM 5.5
Sources
- CVE-2017-7539 · CVE Program
- CVE-2017-7539 · NVD
- FIRST EPSS
- GHSA-8vvg-hj6f-q4wj · GitHub Advisory Database · CC BY 4.0
- CVE-2017-7539 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences