CVE-2018-1000879

Name: CVE-2018-1000879
Creator: NVD / NIST
Published: 2018-12-20T17:29:01.22+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 3.37%

Last modified Jun 17, 2026

CVE-2018-1000879 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 3.37% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

3.37%

87.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Libarchive	Libarchive	>= 3.3.0, < 3.4.0
Fedoraproject	Fedora	28
Fedoraproject	Fedora	29
Fedoraproject	Fedora	30
Opensuse	Leap	15.0

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlMailing List, Third Party Advisory
http://www.securityfocus.com/bid/106324Third Party Advisory, VDB Entry
https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909Patch, Third Party Advisory
https://github.com/libarchive/libarchive/pull/1105Third Party Advisory
https://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlMailing List, Third Party Advisory
http://www.securityfocus.com/bid/106324Third Party Advisory, VDB Entry
https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909Patch, Third Party Advisory
https://github.com/libarchive/libarchive/pull/1105Third Party Advisory
https://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175Patch, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/

Timeline

Published: Dec 20, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-1000879?

How severe is CVE-2018-1000879?

CVE-2018-1000879 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.37% probability of exploitation in the next 30 days.

How do I fix CVE-2018-1000879?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-1000879?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST