HOMEVULNERABILITIESCVE-2018-1000879
MEDIUM

CVE-2018-1000879

CWE-476Published: December 20, 2018· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2018-1000879 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

Fedora1 product(s)
fedora
libarchive1 product(s)
libarchive
openSUSE1 product(s)
leap
Source: NVD CPE · 5 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
PATCHhttps://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175
PATCHhttps://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
PATCHhttps://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
ADVISORYhttp://www.securityfocus.com/bid/106324
ADVISORYhttps://github.com/libarchive/libarchive/pull/1105
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
ADVISORYhttp://www.securityfocus.com/bid/106324
ADVISORYhttps://github.com/libarchive/libarchive/pull/1105

All References (16)

→
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/

Quick Facts

CVE IDCVE-2018-1000879
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-476
CISA KEVNo
Affected3 vendor(s)
PublishedDec 20, 2018

Related CVEs (CWE-476)

CVE-2010-2495
10.0
CVE-2022-36648
10.0
CVE-2023-2840
9.8
CVE-2021-4236
9.8
CVE-2023-31129
9.8
CVE-2023-23087
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1000879 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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