qemu: insufficient constraints checking in exec.c:subpage_register()
Published Aug 24, 2010
6.6
MEDIUMCVSS 2.0
EPSS 0.28%
Description
The subpage MMIO initialization functionality in the subpage_register function in exec.c in QEMU-KVM, as used in the Hypervisor (aka rhev-hypervisor) in Red Hat Enterprise Virtualization (RHEV) 2.2 and KVM 83, does not properly select the index for access to the callback array, which allows guest OS users to cause a denial of service (guest OS crash) or possibly gain privileges via unspecified vectors.
Affected products
No data.
- 2.2
- 83
No data.
Red Hat Enterprise Linux 5
kvm-0:83-164.el5_5.21
Fixed · RHSA-2010:0627
Red Hat Enterprise Virtualization for RHEL-5
rhev-hypervisor-0:5.5-2.2.6.1.el5_5rhev2_2
Fixed · RHSA-2010:0622
Red Hat Enterprise Linux 6
qemu-kvm
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm-0:83-164.el5_5.21 | Fixed | RHSA-2010:0627 |
| Red Hat Enterprise Virtualization for RHEL-5 | rhev-hypervisor-0:5.5-2.2.6.1.el5_5rhev2_2 | Fixed | RHSA-2010:0622 |
| Red Hat Enterprise Linux 6 | qemu-kvm | 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.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:S/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.28% (0.00278) | 18.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.28% (0.00283) | 19.82th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00048) | 12.14th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00059) | 26.93th | v3 (v2023.03.01) |
| May 25, 2024 | 0.06% (0.00059) | 24.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.80th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 13, 2023 | 0.95% (0.00950) | 31.86th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.03% (0.01034) | 40.96th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
References (7)
- http://www.spinics.net/lists/kvm/msg39173.html mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2010-2784 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=619411 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-2784
- https://rhn.redhat.com/errata/RHSA-2010-0622.html vendor-advisoryx_refsource_REDHATPatchVendor Advisory
- https://rhn.redhat.com/errata/RHSA-2010-0627.html vendor-advisoryx_refsource_REDHATPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2010-2784
| Link | Providers | Tags |
|---|---|---|
| http://www.spinics.net/lists/kvm/msg39173.html | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2010-2784 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=619411 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-2784 | ||
| https://rhn.redhat.com/errata/RHSA-2010-0622.html | vendor-advisoryx_refsource_REDHATPatchVendor Advisory | |
| https://rhn.redhat.com/errata/RHSA-2010-0627.html | vendor-advisoryx_refsource_REDHATPatchVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2010-2784 |
Change history (0)
No recorded changes yet.