Home/CVE/A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition
CVE

CVE-2018-15378

A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition

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.

MEDIUM · CVSS 5.5 EPSS 0.01624
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
CWE-125Out-of-bounds Read
▤

Affected Products & Versions

3
clamav< 0.100.2
debian linuxall versions
canonical ubuntu linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighRelevant ClamAV Message
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.0 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Oct 2018 · 05:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

7
suse-csafopenSUSE-SU-2024:10685-1
suse-csafSUSE-SU-2018:3436-2
suse-csafSUSE-SU-2018:3436-1
suse-csafSUSE-SU-2018:3441-1
suse-csafSUSE-SU-2018:3250-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugzilla.clamav.net/show_bug.cgi?id=12170Issue TrackingPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/10/msg00014.htmlMailing ListThird Party Advisory
https://secuniaresearch.flexerasoftware.com/advisories/83000/Permissions RequiredThird 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
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