CVE-2018-5803 json
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 (ne…
published 2018-06-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17570
- cvss
- 5.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- linux linux_kernel 3.2.102, 4.1.51, 4.9.87, 4.14.25, 4.15.8
- linux Debian 14, Debian 13, Debian 12 4.15.11-1
debian advisories DEBIAN-CVE-2018-5803
- linux Ubuntu 14.04 LTS 3.13.0-153.203
- linux Ubuntu 16.04 LTS 4.4.0-127.153
- linux-aws Ubuntu 14.04 LTS 4.4.0-1022.22
- linux-aws Ubuntu 16.04 LTS 4.4.0-1060.69
- linux-gcp Ubuntu 16.04 LTS 4.15.0-1014.14~16.04.1
- linux-hwe Ubuntu 16.04 LTS 4.15.0-24.26~16.04.1
- linux-kvm Ubuntu 16.04 LTS 4.4.0-1026.31
- linux-oem Ubuntu 16.04 LTS 4.13.0-1031.35
ubuntu advisories UBUNTU-CVE-2018-5803
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-alt RHEL 7 4.14.0-115.el7a
- perf RHEL 7 4.14.0-115.el7a
- kernel RHEL 7 4.14.0-115.el7a
- python-perf RHEL 7 4.14.0-115.el7a
- kernel-tools RHEL 7 4.14.0-115.el7a
- kernel-tools-libs RHEL 7 4.14.0-115.el7a
- kernel-bootwrapper RHEL 7 4.14.0-115.el7a
- kernel-abi-whitelists RHEL 7 4.14.0-115.el7a
red hat advisories RHSA-2018:2948RHSA-2018:1854RHSA-2018:3096RHSA-2018:3083RHSA-2019:0641
- kernel-syms SLES 12 SP2-BCL, OpenStack Cloud 7, Enterprise Storage 4 +2 more 4.4.121-92.85.1
- kernel-source SLES 12 SP2-BCL, OpenStack Cloud 7, Enterprise Storage 4 +2 more 4.4.121-92.85.1
- kernel-default SLES 12 SP2-BCL, OpenStack Cloud 7, Enterprise Storage 4 +2 more 4.4.121-92.85.1
- kgraft-patch-SLE12-SP2_Update_23 SLES 12 SP2-BCL, OpenStack Cloud 7, Enterprise Storage 4 +2 more 1-3.5.1
- kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-69.33.1
- kernel-syms-rt SLE Real Time 11 SP4 3.0.101.rt130-69.33.1
- kernel-rt_trace SLE Real Time 11 SP4 3.0.101.rt130-69.33.1
- kernel-source-rt SLE Real Time 11 SP4 3.0.101.rt130-69.33.1
suse advisories SUSE-SU-2018:1855-2SUSE-SU-2018:2637-1SUSE-SU-2018:2366-1SUSE-SU-2018:2332-1SUSE-SU-2018:2092-1SUSE-SU-2018:1855-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2018-5803 updated cvss 5.5
kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service
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Red Hat Enterprise Linux 5 kernelaffected: no fix planned “Will not fix”
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Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-957.el7, kernel 3.10.0-957.el7, bpftool 3.10.0-957.el7, python-perf 3.10.0-957.el7, kernel-tools 3.10.0-957.el7, kernel-tools-libs 3.10.0-957.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-957.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-957.el7, kernel 3.10.0-957.el7, bpftool 3.10.0-957.el7, python-perf 3.10.0-957.el7, kernel-tools 3.10.0-957.el7, kernel-tools-libs 3.10.0-957.el7, +2 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-957.el7fixed: vendor fix RHSA-2018:3083
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Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6fixed: vendor fix RHSA-2018:1854
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Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 3.10.0-957.el7, perf 4.14.0-115.el7a, kernel 3.10.0-957.el7, kernel 4.14.0-115.el7a, kernel-alt 4.14.0-115.el7a, python-perf 3.10.0-957.el7, +13 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 3.10.0-957.el7, kernel-debuginfo-common-ppc64le 4.14.0-115.el7afixed: vendor fix RHSA-2018:3083
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Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-957.rt56.910.el7, kernel-rt-trace 3.10.0-957.rt56.910.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-957.rt56.910.el7, kernel-rt-kvm 3.10.0-957.rt56.910.el7, kernel-rt-trace 3.10.0-957.rt56.910.el7, kernel-rt-debug-kvm 3.10.0-957.rt56.910.el7, kernel-rt-trace-kvm 3.10.0-957.rt56.910.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-957.rt56.910.el7fixed: vendor fix RHSA-2018:3096
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Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-kdump 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-bootwrapper 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, +4 morefixed: vendor fix RHSA-2018:1854
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Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-957.el7, kernel 3.10.0-957.el7, bpftool 3.10.0-957.el7, python-perf 3.10.0-957.el7, kernel-kdump 3.10.0-957.el7, kernel-tools 3.10.0-957.el7, +7 morefixed: vendor fix RHSA-2018:3083
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Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-ppc64 2.6.32-754.el6, kernel-debuginfo-common-s390x 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6fixed: vendor fix RHSA-2018:1854
show 7 moreshow fewer
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Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-957.el7, kernel-debuginfo-common-x86_64 3.10.0-957.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.el7fixed: vendor fix RHSA-2018:3083
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Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-754.el6, kernel 2.6.32-754.el6, kernel-firmware 2.6.32-754.el6, kernel-abi-whitelists 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6fixed: vendor fix RHSA-2018:1854
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Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-957.el7, kernel 3.10.0-957.el7, bpftool 3.10.0-957.el7, python-perf 3.10.0-957.el7, kernel-tools 3.10.0-957.el7, kernel-tools-libs 3.10.0-957.el7, +2 morefixed: vendor fix RHSA-2018:3083
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Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-754.el6, kernel-debuginfo-common-i686 2.6.32-754.el6, kernel-debuginfo-common-x86_64 2.6.32-754.el6fixed: vendor fix RHSA-2018:1854
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Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-957.el7fixed: vendor fix RHSA-2018:3083
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Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-693.46.1.rt56.639.el6rt, kernel-rt-trace 3.10.0-693.46.1.rt56.639.el6rt, kernel-rt-vanilla 3.10.0-693.46.1.rt56.639.el6rt, kernel-rt-firmware 3.10.0-693.46.1.rt56.639.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-693.46.1.rt56.639.el6rtfixed: vendor fix RHSA-2019:0641
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Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-core, kernel-tools, python3-perf, +17 more Red Hat Enterprise Linux Client (v. 7) kernel-headers 3.10.0-957.el7 Red Hat Enterprise Linux ComputeNode (v. 7) kernel-headers 3.10.0-957.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-headers 3.10.0-957.el7 Red Hat Enterprise Linux Server (v. 7) kernel-headers 3.10.0-957.el7 Red Hat Enterprise Linux Workstation (v. 7) kernel-headers 3.10.0-957.el7not affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.9 | AV:L/AC:L/Au:N/C:N/I:N/A:C |
Affected products
- Linux Foundation Linux Kernel
Classification
- Weakness
-
- CWE-20 Improper Input Validation
- Technology feeds
References
-
git.kernel.org
/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c
vendor-advisory
-
access.redhat.com
/errata/RHSA-2018:3083
vendor-advisory, third-party-advisory
-
debian.org
/security/2018/dsa-4187
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3654-1/
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2018:1854
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3697-1/
vendor-advisory, third-party-advisory
-
debian.org
/security/2018/dsa-4188
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2018:2948
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3697-2/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3654-2/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3698-1/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3656-1/
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2018:3096
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3698-2/
vendor-advisory, third-party-advisory
-
access.redhat.com
/errata/RHSA-2019:0641
vendor-advisory, third-party-advisory
-
cdn.kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.14.25
vendor-advisory
-
cdn.kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.1.51
vendor-advisory
-
cdn.kernel.org
/pub/linux/kernel/v3.x/ChangeLog-3.2.102
vendor-advisory
-
cdn.kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.9.87
vendor-advisory
-
cdn.kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.15.8
vendor-advisory
-
cdn.kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.4.121
vendor-advisory
-
secuniaresearch.flexerasoftware.com
/advisories/81331/
third-party-advisory
-
spinics.net
/lists/netdev/msg482523.html
mailing-list, third-party-advisory
-
spinics.net
/lists/linux-sctp/msg07036.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2018/05/msg00000.html
mailing-list, third-party-advisory
-
secuniaresearch.flexerasoftware.com
/secunia_research/2018-2/
third-party-advisory
Sources
- CVE List CVE-2018-5803
- NVD CVE-2018-5803
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.