5.5

CVE-2018-18409: canonical ubuntu_linux Out-of-bounds Read

CVSS: 5.5v3.0MediumModified
AliasesALPINE-CVE-2018-18409MGASA-2019-0264UBUNTU-CVE-2018-18409
Published 17-10-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-18409 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 1.30% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
32/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
1.30%
0%100%
Low · -0.66 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
USN-3955-1

Timeline

  1. 17-10-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

A stack-based buffer over-read exists in setbit() at iptree.h of TCPFLOW 1.5.0, due to received incorrect values causing incorrect computation, leading to denial of service during an address_histogram call or a get_histogram call.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

1.30%

Chance of exploitation in the next 30 days

Percentile

70%

Versus all other CVEs

30-day change

-0.66 pp

From 1.96% on 21-09-2026

21-09-202621-10-2026
EPSS score
1.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Tcpflow

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Alpine1 product
  • tcpflow< 1.5.0-r1
Canonical1 product
Debian1 product
  • tcpflow< 1.5.2+repack1-1
Digitalcorpora1 product
Fedoraproject1 product
Mageia1 product
  • tcpflow< 1.5.2-1.mga6
Ubuntu1 product
  • tcpflow< 1.4.4+repack1-2ubuntu0.1~esm1 | < 1.4.5+repack1-1ubuntu0.1 | < 1.4.5+repack1-4ubuntu0.18.04.1

7 vendors · 7 products

References

11 links
Show all 11 references