HOMEVULNERABILITIESCVE-2018-15378
MEDIUM

CVE-2018-15378

CWE-125Published: October 15, 2018· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the "unmew11()" function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.

NVD Source

Technical Analysis

CVE-2018-15378 requires local access, meaning attackers must already have a foothold on the target system.

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 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
clamav1 product(s)
clamav
Debian1 product(s)
debian linux
Source: NVD CPE · 6 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://bugzilla.clamav.net/show_bug.cgi?id=12170
PATCHhttps://bugzilla.clamav.net/show_bug.cgi?id=12170
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/10/msg00014.html
ADVISORYhttps://secuniaresearch.flexerasoftware.com/advisories/83000/
ADVISORYhttps://security.gentoo.org/glsa/201904-12
ADVISORYhttps://usn.ubuntu.com/3789-1/
ADVISORYhttps://usn.ubuntu.com/3789-2/
ADVISORYhttps://www.flexera.com/company/secunia-research/advisories/SR-2018-23.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/10/msg00014.html
ADVISORYhttps://secuniaresearch.flexerasoftware.com/advisories/83000/
ADVISORYhttps://security.gentoo.org/glsa/201904-12
ADVISORYhttps://usn.ubuntu.com/3789-1/
ADVISORYhttps://usn.ubuntu.com/3789-2/
ADVISORYhttps://www.flexera.com/company/secunia-research/advisories/SR-2018-23.html

All References (14)

→
https://bugzilla.clamav.net/show_bug.cgi?id=12170Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/10/msg00014.htmlMailing List · Third Party Advisory
→
https://secuniaresearch.flexerasoftware.com/advisories/83000/Permissions Required · Third Party Advisory
→
https://security.gentoo.org/glsa/201904-12Third Party Advisory
→
https://usn.ubuntu.com/3789-1/Third Party Advisory
→
https://usn.ubuntu.com/3789-2/Third Party Advisory
→
https://www.flexera.com/company/secunia-research/advisories/SR-2018-23.htmlThird Party Advisory
→
https://bugzilla.clamav.net/show_bug.cgi?id=12170Issue Tracking · Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/10/msg00014.htmlMailing List · Third Party Advisory
→
https://secuniaresearch.flexerasoftware.com/advisories/83000/Permissions Required · Third Party Advisory
→
https://security.gentoo.org/glsa/201904-12Third Party Advisory
→
https://usn.ubuntu.com/3789-1/Third Party Advisory
→
https://usn.ubuntu.com/3789-2/Third Party Advisory
→
https://www.flexera.com/company/secunia-research/advisories/SR-2018-23.htmlThird Party Advisory

Quick Facts

CVE IDCVE-2018-15378
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-125
CISA KEVNo
Affected3 vendor(s)
PublishedOct 15, 2018

Related CVEs (CWE-125)

CVE-2021-21777
10.0
CVE-2017-14451
10.0
CVE-2009-2523
10.0
CVE-2013-0767
10.0
CVE-2021-41556
10.0
CVE-2023-26489
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-15378 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.
← All Vulnerabilities·Search for CVE-2018-15378·NVD