CVE-2018-5803

MEDIUMNVD 5.55.5—Trending — 4 sources updated this week

5.5

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.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 19.1%
KEV: Not listed

Published

June 12, 2018

Last Modified

November 21, 2024

References (52)

PSIRT-CNA@flexerasoftwarehttps://access.redhat.com/errata/RHSA-2018:1854
PSIRT-CNA@flexerasoftwarehttps://access.redhat.com/errata/RHSA-2018:2948
PSIRT-CNA@flexerasoftwarehttps://access.redhat.com/errata/RHSA-2018:3083
PSIRT-CNA@flexerasoftwarehttps://access.redhat.com/errata/RHSA-2018:3096
PSIRT-CNA@flexerasoftwarehttps://access.redhat.com/errata/RHSA-2019:0641
PSIRT-CNA@flexerasoftwarehttps://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102
PSIRT-CNA@flexerasoftwarehttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51
PSIRT-CNA@flexerasoftwarehttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25
PSIRT-CNA@flexerasoftwarehttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.15.8
PSIRT-CNA@flexerasoftwarehttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.121
PSIRT-CNA@flexerasoftwarehttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.87
PSIRT-CNA@flexerasoftwarehttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git/commit/?id=07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c
PSIRT-CNA@flexerasoftwarehttps://lists.debian.org/debian-lts-announce/2018/05/msg00000.html
PSIRT-CNA@flexerasoftwarehttps://secuniaresearch.flexerasoftware.com/advisories/81331/
PSIRT-CNA@flexerasoftwarehttps://secuniaresearch.flexerasoftware.com/secunia_research/2018-2/

Vendor Advisories for CVE-2018-5803(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(12)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-image-extra-4.4.0-127-generic (4.4.0-127.153~14.04.1) @ trusty	2026-05-28	ubuntu
ubuntu	linux-image-extra-3.13.0-153-generic (3.13.0-153.203) @ trusty	2026-05-28	ubuntu
ubuntu	linux-image-4.13.0-1031-oem (4.13.0-1031.35) @ xenial	2026-05-28	ubuntu
ubuntu	linux-image-4.4.0-1093-snapdragon (4.4.0-1093.98) @ xenial	2026-05-28	ubuntu
ubuntu	linux-image-generic-lts-trusty (3.13.0.153.143) @ precise	2026-05-28	ubuntu
ubuntu	linux-image-extra-4.4.0-127-generic (4.4.0-127.153) @ xenial	2026-05-28	ubuntu
ubuntu	linux-image-4.13.0-46-lowlatency (4.13.0-46.51) @ artful	2026-05-28	ubuntu
redhat	kernel-rt-1:3.10.0-693.46.1.rt56.639.el6rt	2019-03-26	redhat
redhat	kernel-alt-0:4.14.0-115.el7a	2018-10-30	redhat
redhat	kernel-0:3.10.0-957.el7	2018-10-30	redhat
redhat	kernel-rt-0:3.10.0-957.rt56.910.el7	2018-10-30	redhat
redhat	kernel-0:2.6.32-754.el6	2018-06-19	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

Additional Vendor Advisories

(10)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 16× in last 7d / 16× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 06:43 UTCEG score recompute
2026-05-28 06:43 UTCVendor advisory
2026-05-28 06:43 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-5803?

CVE-2018-5803 is a medium vulnerability published on June 12, 2018. 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 "sctpmakechunk()" function (net/sctp/smmake_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash.

When was CVE-2018-5803 disclosed?

CVE-2018-5803 was first published in the National Vulnerability Database on June 12, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-5803 actively exploited?

CVE-2018-5803 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 19.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-5803?

CVE-2018-5803 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2018-5803?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-5803, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-5803

Published

Last Modified

References (52)

Vendor Advisories for CVE-2018-5803(2)

Patch Availability(12)

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-5803?

Same vendor

Same CWE

CVE-2018-5803

📅 Published

🔄 Last Modified

🔗 References (52)

📣 Vendor Advisories for CVE-2018-5803(2)

Patch Availability(12)

Weakness Classification(1)

Additional Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-5803?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (52)

Vendor Advisories for CVE-2018-5803(2)

Frequently asked(5)

Related CVEs(same vendor + same CWE)