HOMEVULNERABILITIESCVE-2018-1000878
HIGH

CVE-2018-1000878

CWE-416Published: December 20, 2018· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

NVD Source

Technical Analysis

CVE-2018-1000878 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Fedora1 product(s)
fedora
libarchive1 product(s)
libarchive
openSUSE1 product(s)
leap
Red Hat3 product(s)
enterprise linux desktopenterprise linux serverenterprise linux workstation
Source: NVD CPE · 14 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/bfcfe6f04ed20db2504db8a254d1f40a1d84eb28
PATCHhttps://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
PATCHhttps://github.com/libarchive/libarchive/pull/1105/commits/bfcfe6f04ed20db2504db8a254d1f40a1d84eb28
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
ADVISORYhttp://www.securityfocus.com/bid/106324
ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2298
ADVISORYhttps://github.com/libarchive/libarchive/pull/1105
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/12/msg00011.html
ADVISORYhttps://usn.ubuntu.com/3859-1/
ADVISORYhttps://www.debian.org/security/2018/dsa-4360
ADVISORYhttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
ADVISORYhttp://www.securityfocus.com/bid/106324
ADVISORYhttps://access.redhat.com/errata/RHSA-2019:2298
ADVISORYhttps://github.com/libarchive/libarchive/pull/1105
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/12/msg00011.html
ADVISORYhttps://usn.ubuntu.com/3859-1/
ADVISORYhttps://www.debian.org/security/2018/dsa-4360

All References (30)

→
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
→
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
→
http://www.securityfocus.com/bid/106324Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2019:2298Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2019:3698
→
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/bfcfe6f04ed20db2504db8a254d1f40a1d84eb28Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/12/msg00011.htmlThird 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/
→
https://usn.ubuntu.com/3859-1/Third Party Advisory
→
https://www.debian.org/security/2018/dsa-4360Third Party Advisory

Quick Facts

CVE IDCVE-2018-1000878
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-416
CISA KEVNo
Affected6 vendor(s)
PublishedDec 20, 2018

Related CVEs (CWE-416)

CVE-2012-1976
10.0
CVE-2012-1975
10.0
CVE-2012-1973
10.0
CVE-2012-1972
10.0
CVE-2012-1974
10.0
CVE-2012-3956
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1000878 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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