---
id: CVE-2018-1000879
title: >-
  libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards
  (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference
  vulnerability in ACL parser - libarchive/archive_acl.c,
  archive_acl_from_text_l() that can r…
summary: >-
  libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards
  (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference
  vulnerability in ACL parser - libarchive/archive_acl.c,
  archive_acl_from_text_l() that can r…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'
cwe:
  - CWE-476
vendor: libarchive
product: libarchive
affected:
  - 'libarchive >= 3.3.0, < 3.4.0'
  - fedora = 28
  - fedora = 29
  - fedora = 30
  - leap = 15.0
patched:
  - libarchive 3.4.0
published: '2018-12-20'
updated: '2026-10-08'
sourceUpdated: '2026-10-08T21:17:06.957'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2018-1000879'
references:
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html'
    label: cve@mitre.org
  - url: 'http://www.securityfocus.com/bid/106324'
    label: cve@mitre.org
  - url: 'https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909'
    label: cve@mitre.org
  - url: 'https://github.com/libarchive/libarchive/pull/1105'
    label: cve@mitre.org
  - url: >-
      https://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175
    label: cve@mitre.org
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
    label: cve@mitre.org
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/
    label: cve@mitre.org
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
    label: cve@mitre.org
  - url: 'http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.securityfocus.com/bid/106324'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/libarchive/libarchive/pull/1105'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-1000879.json
  - url: 'https://access.redhat.com/security/cve/CVE-2018-1000879'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=1663890'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2018-1000879'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2018-1000879'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.03367
epssPercentile: 0.8841
ingestedAt: '2026-10-08T22:11:53.694Z'
scores:
  nvd: 6.5
  vendor: 4.3
---

## Overview

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

## Affected

- `libarchive >= 3.3.0, < 3.4.0`
- `fedora = 28`
- `fedora = 29`
- `fedora = 30`
- `leap = 15.0`

## Remediation

Upgrade past the affected range:

- `libarchive 3.4.0`

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 8 · no fix planned: Red Hat Enterprise Linux 8 · updated 2026-10-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-1000879.json)