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Fencer Intel
high 8.8

CVE-2018-14447 json

trim_whitespace in lexer.l in libConfuse v3.2.1 has an out-of-bounds read.

published 8y ago modified 4mo ago also EUVD-2018-6364

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

trim_whitespace in lexer.l in libConfuse v3.2.1 has an out-of-bounds read.

Patch / fix

  • confuse Ubuntu 14.04 LTS 2.7-5+deb8u1build0.14.04.1
  • confuse Ubuntu 16.04 LTS 2.7-5+deb8u1build0.16.04.1
  • confuse Ubuntu 18.04 LTS 3.2.1+dfsg-4ubuntu0.1

ubuntu advisories UBUNTU-CVE-2018-14447

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

  • confuse Alpine 3.24, Alpine 3.23, Alpine 3.22 +13 more 3.2.2-r0

alpine advisories ALPINE-CVE-2018-14447

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2018-14447 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2018-14447 updated cvss 4.3

libconfuse: Out-of-bounds read in src/lexer.l:trim_whitespace()

  • Red Hat All currently supported Red Hat products
    not 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

1.76% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/martinh/libconfuse/issues/109 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

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.