kernel: cxusb.c interacts incorrectly with the CONFIG_VMAP_STACK option
Published Apr 23, 2017
7.8
HIGHCVSS 3.1
EPSS 0.41%
Description
drivers/media/usb/dvb-usb/cxusb.c in the Linux kernel 4.9.x and 4.10.x before 4.10.12 interacts incorrectly with the CONFIG_VMAP_STACK option, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact by leveraging use of more than one virtual page for a DMA scatterlist.
Affected products
No data.
- ≥ 4.9 · < 4.9.24
- ≥ 4.10 · < 4.10.12
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | 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:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:L/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.41% (0.00410) | 32.85th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.41% (0.00410) | 35.01th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00042) | 5.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00829) | 22.25th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00829) | 0.00th | v1 |
References (9)
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.12 x_refsource_CONFIRMRelease Notes
- http://www.openwall.com/lists/oss-security/2017/04/16/4 mailing-listx_refsource_MLISTMailing ListPatch
- http://www.securityfocus.com/bid/97974 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-8063 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1445334 Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f190e3aec212fc8c61e202c51400afa7384d4bc x_refsource_CONFIRMPatch
- https://github.com/torvalds/linux/commit/3f190e3aec212fc8c61e202c51400afa7384d4bc x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2017-8063
- https://www.cve.org/CVERecord?id=CVE-2017-8063
| Link | Providers | Tags |
|---|---|---|
| http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.10.12 | x_refsource_CONFIRMRelease Notes | |
| http://www.openwall.com/lists/oss-security/2017/04/16/4 | mailing-listx_refsource_MLISTMailing ListPatch | |
| http://www.securityfocus.com/bid/97974 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-8063 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1445334 | Issue Tracking | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3f190e3aec212fc8c61e202c51400afa7384d4bc | x_refsource_CONFIRMPatch | |
| https://github.com/torvalds/linux/commit/3f190e3aec212fc8c61e202c51400afa7384d4bc | x_refsource_CONFIRMPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-8063 | ||
| https://www.cve.org/CVERecord?id=CVE-2017-8063 |
Change history (0)
No recorded changes yet.