kernel: ipv4/tcp: Infinite loop in tcp_splice_read()
Published Feb 23, 2017
7.5
HIGHCVSS 3.0
EPSS 4.67%
Description
The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag.
Affected products
No data.
- ≤ 4.9.10
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-696.3.1.el6
Fixed · RHSA-2017:1372
Red Hat Enterprise Linux 7
kernel-0:3.10.0-514.26.1.el7
Fixed · RHSA-2017:1615
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-514.26.1.rt56.442.el7
Fixed · RHSA-2017:1616
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-514.rt56.228.el6rt
Fixed · RHSA-2017:1647
Red Hat Enterprise Linux 5
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-696.3.1.el6 | Fixed | RHSA-2017:1372 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-514.26.1.el7 | Fixed | RHSA-2017:1615 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-514.26.1.rt56.442.el7 | Fixed | RHSA-2017:1616 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-514.rt56.228.el6rt | Fixed | RHSA-2017:1647 |
| 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 with 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AV:N/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (18 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.67% (0.04666) | 91.47th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.67% (0.04666) | 90.55th | v5 (v2026.06.15) |
| Nov 30, 2025 | 9.46% (0.09460) | 92.50th | v4 (v2025.03.14) |
| Nov 21, 2025 | 6.49% (0.06488) | 90.68th | v4 (v2025.03.14) |
| Nov 18, 2025 | 9.46% (0.09460) | 91.99th | v4 (v2025.03.14) |
| Mar 30, 2025 | 6.41% (0.06407) | 90.11th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.07% (0.05067) | 82.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 6.41% (0.06407) | 90.34th | v4 (v2025.03.14) |
| Jul 20, 2024 | 4.72% (0.04719) | 92.75th | v3 (v2023.03.01) |
| May 26, 2024 | 4.72% (0.04719) | 92.64th | v3 (v2023.03.01) |
| Mar 7, 2024 | 4.20% (0.04199) | 91.97th | v3 (v2023.03.01) |
| Jan 27, 2024 | 2.96% (0.02961) | 89.86th | v3 (v2023.03.01) |
| Dec 15, 2023 | 2.79% (0.02785) | 89.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.50% (0.02496) | 88.40th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.83% (0.03831) | 72.38th | v5 (v2026.06.15) |
| Apr 14, 2021 | 3.83% (0.03831) | 0.00th | v1 |
References (15)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccf7abb93af09ad0868ae9033d1ca8108bdaec82 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://www.debian.org/security/2017/dsa-3804 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11 x_refsource_CONFIRMRelease NotesVendor Advisory
- http://www.securityfocus.com/bid/96421 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1037897 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/errata/RHSA-2017:1372 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:1615 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:1616 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2017:1647 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2017-6214 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1426542 Issue Tracking
- https://github.com/torvalds/linux/commit/ccf7abb93af09ad0868ae9033d1ca8108bdaec82 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-6214
- https://source.android.com/security/bulletin/2017-09-01 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2017-6214
Change history (0)
No recorded changes yet.