kernel: Use after free in SCSI generic device interface (CVE-2016-9576 regression)
Published Dec 30, 2016
7.0
HIGHCVSS 3.1
EPSS 0.37%
Description
The sg implementation in the Linux kernel through 4.9 does not properly restrict write operations in situations where the KERNEL_DS option is set, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576.
Affected products
No data.
- < 3.10.107
- ≥ 3.11 · < 3.12.70
- ≥ 3.13 · < 3.16.40
- ≥ 3.17 · < 3.18.47
- ≥ 3.19 · < 4.1.38
- ≥ 4.2 · < 4.4.41
- ≥ 4.5 · < 4.8.17
- ≥ 4.9 · < 4.9.2
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-696.el6
Fixed · RHSA-2017:0817
Red Hat Enterprise Linux 7
kernel-0:3.10.0-693.el7
Fixed · RHSA-2017:1842
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-693.rt56.617.el7
Fixed · RHSA-2017:2077
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt
Fixed · RHSA-2017:2669
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-696.el6 | Fixed | RHSA-2017:0817 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-693.el7 | Fixed | RHSA-2017:1842 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-693.rt56.617.el7 | Fixed | RHSA-2017:2077 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt | Fixed | RHSA-2017:2669 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 as the code which can trigger the flaw is not present in the products listed. This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00372) | 28.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00372) | 28.76th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00031) | 5.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (13)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=128394eff343fc6d2f32172f03e24829539c5835 x_refsource_CONFIRMPatchVendor Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0817.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/30/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/95169 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037538 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1842 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2077 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2669 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-10088 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1412210 Issue Tracking
- https://github.com/torvalds/linux/commit/128394eff343fc6d2f32172f03e24829539c5835 x_refsource_CONFIRMPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-10088
- https://www.cve.org/CVERecord?id=CVE-2016-10088
Change history (0)
No recorded changes yet.