kernel: EXT4 memory corruption / SLAB out-of-bounds read
Published Feb 6, 2017
6.2
MEDIUMCVSS 3.0
EPSS 0.43%
Description
The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image.
Affected products
No data.
- ≤ 4.9.8
No data.
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.21.1.el7
Fixed · RHSA-2017:1308
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.21.1.rt56.438.el7
Fixed · RHSA-2017:1298
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-514.rt56.221.el6rt
Fixed · RHSA-2017:1297
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.21.1.el7 | Fixed | RHSA-2017:1308 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.21.1.rt56.438.el7 | Fixed | RHSA-2017:1298 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-514.rt56.221.el6rt | Fixed | RHSA-2017:1297 |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7, MRG-2 and realtime kernels. This has been rated as having Moderate security impact and is currently planned to be addressed in future updates. This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:L/AC:L/Au:N/C:N/I:N/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 | 0.43% (0.00428) | 34.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.43% (0.00428) | 33.93th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00097) | 24.78th | 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 | 1.28% (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 (14)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3a4b77cd47bb837b8557595ec7425f281f2ca1fe x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://seclists.org/fulldisclosure/2016/Nov/75 mailing-listx_refsource_FULLDISCMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2017/02/05/3 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/94354 vdb-entryx_refsource_BID
- https://access.redhat.com/errata/RHSA-2017:1297 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:1298 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:1308 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2016-10208 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1395190 x_refsource_CONFIRMIssue TrackingPatch
- https://github.com/torvalds/linux/commit/3a4b77cd47bb837b8557595ec7425f281f2ca1fe x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00004.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2016-10208
- https://usn.ubuntu.com/3754-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2016-10208
Change history (0)
No recorded changes yet.