Qemu: scsi: mptsas: OOB access when freeing MPTSASRequest object
Published Oct 10, 2016
4.4
MEDIUMCVSS 3.1
EPSS 0.40%
Description
The mptsas_process_scsi_io_request function in QEMU (aka Quick Emulator), when built with LSI SAS1068 Host Bus emulation support, allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors involving MPTSASRequest objects.
Affected products
No data.
No data.
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 7
qemu-kvm
Will not fix
Red Hat Enterprise Linux 7
qemu-kvm-rhev
Will not fix
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
qemu-kvm-rhev
Not affected
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
qemu-kvm-rhev
Not affected
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 10 (Newton)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 8 (Liberty)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 9 (Mitaka)
qemu-kvm-rhev
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| 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 7 | qemu-kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | qemu-kvm-rhev | Not 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:H/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L
AV:L/AC:L/Au:N/C:N/I:N/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.40% (0.00395) | 31.28th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00398) | 31.37th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.14% (0.00141) | 30.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.41% (0.01413) | 68.52th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.14% (0.00145) | 32.18th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=670e56d3ed2918b3861d9216f2c0540d9e9ae0d5 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2016/09/16/11 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/09/16/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/92997 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-7423 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1376776 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03604.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-7423
- https://security.gentoo.org/glsa/201611-11 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-7423
| Link | Providers | Tags |
|---|---|---|
| http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=670e56d3ed2918b3861d9216f2c0540d9e9ae0d5 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2016/09/16/11 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/09/16/5 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/92997 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-7423 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1376776 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg03604.html | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-7423 | ||
| https://security.gentoo.org/glsa/201611-11 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2016-7423 |
Change history (0)
No recorded changes yet.