5.5

CVE-2018-5803: debian debian_linux Improper Input Validation

Modified
AliasesUBUNTU-CVE-2018-5803DEBIAN-CVE-2018-5803
Published 12-06-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-5803 is a medium (CVSS 5.5) Improper Input Validation vulnerability in debian debian_linux. EPSS estimates a 0.83% chance of exploitation in the next 30 days, higher than 57.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
0.83%
0%100%
Low · -0.01 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 23 · Related 15
DLA-1369-1DSA-4187-1DSA-4188-1RHSA-2018:1854RHSA-2018:2948RHSA-2018:3083

Timeline

  1. 12-06-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.83%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

Decrease -0.01 pp

From 0.84% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu22 products
  • linux< 3.13.0-153.203 | < 4.4.0-127.153
  • linux-aws< 4.4.0-1022.22 | < 4.4.0-1060.69
  • linux-azure< 4.15.0-1013.13~16.04.2
  • linux-azure-6.11All versions (No fix recorded)
  • linux-azure-fdeAll versions (No fix recorded)
Redhat4 products
Debian2 products
Linux1 product
  • linux_kernel< 3.2.102 | ≥ 3.3, < 4.1.51 | ≥ 4.3, < 4.9.87 | ≥ 4.10, < 4.14.25 | ≥ 4.15, < 4.15.8
Linux foundation1 product
  • linux kernel< version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102.

5 vendors · 30 products

References

37 links
Show all 37 references