kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service
Published Jun 12, 2018
5.5
MEDIUMCVSS 3.0
EPSS 0.84%
Description
In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.
Affected products
-
- Version Before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102.StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Linux Foundation | Linux Kernel | n/a |
|
Configuration 1
- < 3.2.102
- ≥ 3.3 · < 4.1.51
- ≥ 4.3 · < 4.9.87
- ≥ 4.10 · < 4.14.25
- ≥ 4.15 · < 4.15.8
Configuration 2
- 7.0
- 8.0
- 9.0
Configuration 3
- 4.0
- 7.0
- 7.0
- 7.0
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-754.el6
Fixed · RHSA-2018:1854
Red Hat Enterprise Linux 7
kernel-0:3.10.0-957.el7
Fixed · RHSA-2018:3083
Red Hat Enterprise Linux 7
kernel-alt-0:4.14.0-115.el7a
Fixed · RHSA-2018:2948
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-957.rt56.910.el7
Fixed · RHSA-2018:3096
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-693.46.1.rt56.639.el6rt
Fixed · RHSA-2019:0641
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise Linux 8
kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-754.el6 | Fixed | RHSA-2018:1854 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-957.el7 | Fixed | RHSA-2018:3083 |
| Red Hat Enterprise Linux 7 | kernel-alt-0:4.14.0-115.el7a | Fixed | RHSA-2018:2948 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-957.rt56.910.el7 | Fixed | RHSA-2018:3096 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-693.46.1.rt56.639.el6rt | Fixed | RHSA-2019:0641 |
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | 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.
No CVSS v3.1 score for this CVE.
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: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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.84% (0.00841) | 56.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.55% (0.00550) | 41.44th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00089) | 23.34th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 30.08th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.06% (0.00064) | 28.38th | v3 (v2023.03.01) |
| Jun 6, 2023 | 0.06% (0.00064) | 26.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00046) | 14.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
| Feb 3, 2022 | 5.43% (0.05433) | 79.90th | v1 |
| Jan 6, 2022 | 5.43% (0.05433) | 79.70th | v1 |
| Sep 1, 2021 | 5.43% (0.05433) | 88.53th | v1 |
| Apr 14, 2021 | 5.43% (0.05433) | 0.00th | v1 |
References (30)
- https://access.redhat.com/errata/RHSA-2018:1854 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2948 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3083 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3096 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0641 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-5803 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1551051 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102 x_refsource_CONFIRMVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51 x_refsource_CONFIRMVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25 x_refsource_CONFIRMVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8 x_refsource_CONFIRMVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121 x_refsource_CONFIRMVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87 x_refsource_CONFIRMVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c x_refsource_CONFIRMVendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-5803
- https://secuniaresearch.flexerasoftware.com/advisories/81331/ third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/ x_refsource_MISCThird Party Advisory
- https://usn.ubuntu.com/3654-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3654-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3656-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3697-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3697-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3698-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3698-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-5803
- https://www.debian.org/security/2018/dsa-4187 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.debian.org/security/2018/dsa-4188 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.spinics.net/lists/linux-sctp/msg07036.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://www.spinics.net/lists/netdev/msg482523.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
Change history (0)
No recorded changes yet.