---
id: CVE-2019-20367
title: >-
  nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison
  for a symbol name from the string table (strtab).
summary: >-
  nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison
  for a symbol name from the string table (strtab).
severity: critical
cvss: 9.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-125
vendor: freedesktop
product: libbsd
affected:
  - libbsd < 0.10.0
  - debian_linux = 9.0
  - ubuntu_linux = 12.04
  - ubuntu_linux = 14.04
  - ubuntu_linux = 16.04
  - ubuntu_linux = 18.04
  - ubuntu_linux = 19.04
  - leap = 15.1
patched:
  - libbsd 0.10.0
published: '2020-01-08'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T08:17:00.940'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-20367'
references:
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00043.html'
    label: cve@mitre.org
  - url: >-
      https://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b
    label: cve@mitre.org
  - url: >-
      https://lists.apache.org/thread.html/r0e913668380f59bcbd14fdd8ae8d24f95f99995e290cd18a7822c6e5%40%3Cdev.tomee.apache.org%3E
    label: cve@mitre.org
  - url: >-
      https://lists.apache.org/thread.html/ra781e51cf1ec40381c98cddc073b3576fb56c3978f4564d2fa431550%40%3Cdev.tomee.apache.org%3E
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2021/02/msg00027.html'
    label: cve@mitre.org
  - url: 'https://lists.freedesktop.org/archives/libbsd/2019-August/000229.html'
    label: cve@mitre.org
  - url: 'https://usn.ubuntu.com/4243-1/'
    label: cve@mitre.org
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00043.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://gitlab.freedesktop.org/libbsd/libbsd/commit/9d917aad37778a9f4a96ba358415f077f3f36f3b
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/r0e913668380f59bcbd14fdd8ae8d24f95f99995e290cd18a7822c6e5%40%3Cdev.tomee.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.apache.org/thread.html/ra781e51cf1ec40381c98cddc073b3576fb56c3978f4564d2fa431550%40%3Cdev.tomee.apache.org%3E
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2021/02/msg00027.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.freedesktop.org/archives/libbsd/2019-August/000229.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://usn.ubuntu.com/4243-1/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-398330.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.02805
epssPercentile: 0.86143
ingestedAt: '2026-10-14T08:23:04.329Z'
---

## Overview

nlist.c in libbsd before 0.10.0 has an out-of-bounds read during a comparison for a symbol name from the string table (strtab).

## Affected

- `libbsd < 0.10.0`
- `debian_linux = 9.0`
- `ubuntu_linux = 12.04`
- `ubuntu_linux = 14.04`
- `ubuntu_linux = 16.04`
- `ubuntu_linux = 18.04`
- `ubuntu_linux = 19.04`
- `leap = 15.1`

## Remediation

Upgrade past the affected range:

- `libbsd 0.10.0`