Qemu: ide: ahci use-after-free vulnerability in aio port commands
Published Apr 8, 2016
8.8
HIGHCVSS 3.1
EPSS 0.53%
Description
Use-after-free vulnerability in hw/ide/ahci.c in QEMU, when built with IDE AHCI Emulation support, allows guest OS users to cause a denial of service (instance crash) or possibly execute arbitrary code via an invalid AHCI Native Command Queuing (NCQ) AIO command.
Affected products
No data.
Configuration 3
- 5.0
- 3.0
Running on/with
- 7.0
Configuration 4
- 7.0
- 8.0
No data.
RHEV 3.6 For IBM Power Systems
qemu-kvm-rhev-10:2.3.0-31.el7_2.7
Fixed · RHSA-2016:0084
RHEV 3.X Hypervisor and Agents for RHEL-7
qemu-kvm-rhev-10:2.3.0-31.el7_2.7
Fixed · RHSA-2016:0084
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
qemu-kvm-rhev-10:2.3.0-31.el7_2.7
Fixed · RHSA-2016:0086
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
qemu-kvm-rhev-10:2.3.0-31.el7_2.7
Fixed · RHSA-2016:0087
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
qemu-kvm-rhev-10:2.3.0-31.el7_2.7
Fixed · RHSA-2016:0088
Red Hat Enterprise Linux 5
kvm
Not affected
Red Hat Enterprise Linux 5
xen
Not affected
Red Hat Enterprise Linux 6
qemu-kvm
Not affected
Red Hat Enterprise Linux 6
qemu-kvm-rhev
Not affected
Red Hat Enterprise Linux 7
qemu-kvm
Affected
Red Hat OpenStack Platform 8 (Liberty)
qemu-kvm-rhev
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.6 For IBM Power Systems | qemu-kvm-rhev-10:2.3.0-31.el7_2.7 | Fixed | RHSA-2016:0084 |
| RHEV 3.X Hypervisor and Agents for RHEL-7 | qemu-kvm-rhev-10:2.3.0-31.el7_2.7 | Fixed | RHSA-2016:0084 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | qemu-kvm-rhev-10:2.3.0-31.el7_2.7 | Fixed | RHSA-2016:0086 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | qemu-kvm-rhev-10:2.3.0-31.el7_2.7 | Fixed | RHSA-2016:0087 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | qemu-kvm-rhev-10:2.3.0-31.el7_2.7 | Fixed | RHSA-2016:0088 |
| Red Hat Enterprise Linux 5 | kvm | Not affected | n/a |
| Red Hat Enterprise Linux 5 | xen | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm-rhev | Not affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm | Affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | qemu-kvm-rhev | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The vector of exploit requires to enable TIOCSTI with sysctl, because it is by default disabled since RHEL9 and on. Then, the user would have to be in root terminal, from there the user would have to run a malicious app that would use TIOCSTI to jump out of the child non-root shell back to the parent root shell.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/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 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 | 0.53% (0.00533) | 42.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00533) | 40.56th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.42% (0.00423) | 59.99th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.07% (0.00074) | 34.14th | v3 (v2023.03.01) |
| Jul 10, 2023 | 0.07% (0.00074) | 30.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00065) | 26.42th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01916) | 77.44th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.92% (0.01916) | 77.43th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.92% (0.01916) | 75.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.92% (0.01916) | 54.59th | v2 (v2022.01.01) |
References (17)
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=4ab0359a8ae182a7ac5c99609667273167703fab x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2016-0084.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0086.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0087.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-0088.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.debian.org/security/2016/dsa-3469 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.debian.org/security/2016/dsa-3470 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.debian.org/security/2016/dsa-3471 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/09/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/01/09/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/80191 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1034859 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-1568 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1288532 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-1568
- https://security.gentoo.org/glsa/201602-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-1568
Change history (0)
No recorded changes yet.