HIGH
libvirt: Resource exhaustion via qemuMonitorIORead() method
Published Jan 25, 2018
7.5
HIGHCVSS 3.0
EPSS 3.17%
Description
qemu/qemu_monitor.c in libvirt allows attackers to cause a denial of service (memory consumption) via a large QEMU reply.
Affected products
No data.
Configuration 2
OR
- 7.0
- 8.0
- 9.0
Configuration 3
OR
- 6.0
- 7.0
- 6.0
- 7.0
- 7.6
- 7.5
- 7.6
- 7.6
- 6.0
- 7.0
No data.
Red Hat Enterprise Linux 6
libvirt-0:0.10.2-64.el6
Fixed · RHSA-2018:1929
Red Hat Enterprise Linux 7
libvirt-0:3.9.0-14.el7_5.4
Fixed · RHSA-2018:1396
Red Hat Storage 3 for RHEL 6
libvirt-0:0.10.2-64.el6
Fixed · RHSA-2018:1929
Red Hat Enterprise Linux 5
libvirt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libvirt-0:0.10.2-64.el6 | Fixed | RHSA-2018:1929 |
| Red Hat Enterprise Linux 7 | libvirt-0:3.9.0-14.el7_5.4 | Fixed | RHSA-2018:1396 |
| Red Hat Storage 3 for RHEL 6 | libvirt-0:0.10.2-64.el6 | Fixed | RHSA-2018:1929 |
| Red Hat Enterprise Linux 5 | libvirt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
1 other source (Red Hat) ▾
3.3 LOW Red Hat
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.17% 0.03175
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.03175
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.17% (0.03175) | 87.59th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.24% (0.03236) | 86.61th | v5 (v2026.06.15) |
| Nov 21, 2025 | 1.36% (0.01359) | 79.58th | v4 (v2025.03.14) |
| Nov 18, 2025 | 3.01% (0.03013) | 85.38th | v4 (v2025.03.14) |
| Oct 12, 2025 | 0.72% (0.00721) | 71.63th | v4 (v2025.03.14) |
| Jul 20, 2024 | 2.26% (0.02256) | 89.73th | v3 (v2023.03.01) |
| Sep 14, 2023 | 2.26% (0.02256) | 88.20th | v3 (v2023.03.01) |
| Aug 21, 2023 | 2.40% (0.02403) | 88.52th | v3 (v2023.03.01) |
| Jul 28, 2023 | 3.04% (0.03039) | 89.63th | v3 (v2023.03.01) |
| Jul 8, 2023 | 3.55% (0.03553) | 90.29th | v3 (v2023.03.01) |
| Jun 18, 2023 | 3.23% (0.03226) | 89.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.87% (0.03872) | 90.54th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.81% (0.01806) | 35.10th | v1 |
| Jan 6, 2022 | 1.81% (0.01806) | 34.40th | v1 |
| Sep 1, 2021 | 1.81% (0.01806) | 74.37th | v1 |
| Apr 14, 2021 | 1.81% (0.01806) | 0.00th | v1 |
Weaknesses (1)
References (10)
- http://www.securityfocus.com/bid/102825 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:1396 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1929 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-5748 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1528396 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/03/msg00018.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-5748
- https://www.cve.org/CVERecord?id=CVE-2018-5748
- https://www.debian.org/security/2018/dsa-4137 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.redhat.com/archives/libvir-list/2018-January/msg00527.html mailing-listx_refsource_MLISTPatchThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102825 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/errata/RHSA-2018:1396 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2018:1929 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-5748 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1528396 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/03/msg00018.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-5748 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-5748 | ||
| https://www.debian.org/security/2018/dsa-4137 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://www.redhat.com/archives/libvir-list/2018-January/msg00527.html | mailing-listx_refsource_MLISTPatchThird Party Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 25, 2018
Updated Aug 5, 2024
Reserved Jan 17, 2018
Link CVE-2018-5748
CISA Vulnrichment
Updated n/a