qemu: virtio: insufficient validation of num_sg when mapping
Published May 28, 2021
7.8
HIGHCVSS 3.1
EPSS 0.30%
Description
An user able to alter the savevm data (either on the disk or over the wire during migration) could use this flaw to to corrupt QEMU process memory on the (destination) host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process.
Affected products
- Vendor n/a Product QEMU Defaultn/a
- Version qemu-kvm 1.5.3StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | QEMU | n/a |
|
No data.
OpenStack 3 for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.10
Fixed · RHSA-2014:0888
OpenStack 4 for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.10
Fixed · RHSA-2014:0888
RHEV 3.X Hypervisor and Agents for RHEL-6
qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.10
Fixed · RHSA-2014:0744
RHEV 3.X Hypervisor and Agents for RHEL-6
rhev-hypervisor6-0:6.5-20140603.2.el6ev
Fixed · RHSA-2014:0674
Red Hat Enterprise Linux 6
qemu-kvm-2:0.12.1.2-2.415.el6_5.10
Fixed · RHSA-2014:0743
Red Hat Enterprise Linux 7
qemu-kvm-10:1.5.3-60.el7_0.5
Fixed · RHSA-2014:0927
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
qemu-kvm-rhev-10:1.5.3-60.el7_0.7
Fixed · RHSA-2014:1268
Red Hat Enterprise Linux 5
kvm
Will not fix
Red Hat Enterprise Linux 6
qemu-kvm-rhev
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| OpenStack 3 for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.10 | Fixed | RHSA-2014:0888 |
| OpenStack 4 for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.10 | Fixed | RHSA-2014:0888 |
| RHEV 3.X Hypervisor and Agents for RHEL-6 | qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.10 | Fixed | RHSA-2014:0744 |
| RHEV 3.X Hypervisor and Agents for RHEL-6 | rhev-hypervisor6-0:6.5-20140603.2.el6ev | Fixed | RHSA-2014:0674 |
| Red Hat Enterprise Linux 6 | qemu-kvm-2:0.12.1.2-2.415.el6_5.10 | Fixed | RHSA-2014:0743 |
| Red Hat Enterprise Linux 7 | qemu-kvm-10:1.5.3-60.el7_0.5 | Fixed | RHSA-2014:0927 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | qemu-kvm-rhev-10:1.5.3-60.el7_0.7 | Fixed | RHSA-2014:1268 |
| Red Hat Enterprise Linux 5 | kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm-rhev | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:P/A:P
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 1, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.30% (0.00298) | 20.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.30% (0.00298) | 21.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00044) | 10.51th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 14.58th | v3 (v2023.03.01) |
| May 25, 2024 | 0.04% (0.00044) | 12.27th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.00% (0.01005) | 38.10th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.00% (0.01005) | 36.41th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.00% (0.01005) | 34.40th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.00% (0.01005) | 17.93th | v2 (v2022.01.01) |
References (5)
- https://access.redhat.com/security/cve/CVE-2013-4536 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1066401 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2013-4536
- https://security.netapp.com/advisory/ntap-20210727-0002/ x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2013-4536
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2013-4536 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1066401 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-4536 | ||
| https://security.netapp.com/advisory/ntap-20210727-0002/ | x_refsource_CONFIRMThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2013-4536 |
Change history (0)
No recorded changes yet.