HOMEVULNERABILITIESCVE-2017-12378
MEDIUM

CVE-2017-12378

CWE-125Published: January 26, 2018· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper input validation checking mechanisms of .tar (Tape Archive) files sent to an affected device. A successful exploit could cause a checksum buffer over-read condition when ClamAV scans the malicious .tar file, potentially allowing the attacker to cause a DoS condition on the affected device.

NVD Source

Technical Analysis

CVE-2017-12378 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

clamav1 product(s)
clamav
Debian1 product(s)
debian linux
Source: NVD CPE · 2 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=11946
PATCHhttps://bugzilla.clamav.net/show_bug.cgi?id=11946
ADVISORYhttp://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/01/msg00035.html
ADVISORYhttp://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/01/msg00035.html

All References (10)

→
http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes · Vendor Advisory
→
https://bugzilla.clamav.net/show_bug.cgi?id=11946Exploit · Issue Tracking · Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List · Third Party Advisory
→
https://usn.ubuntu.com/3550-1/
→
https://usn.ubuntu.com/3550-2/
→
http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes · Vendor Advisory
→
https://bugzilla.clamav.net/show_bug.cgi?id=11946Exploit · Issue Tracking · Patch · Vendor Advisory
→
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List · Third Party Advisory
→
https://usn.ubuntu.com/3550-1/
→
https://usn.ubuntu.com/3550-2/

Quick Facts

CVE IDCVE-2017-12378
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-125
CISA KEVNo
Affected2 vendor(s)
PublishedJan 26, 2018

Related CVEs (CWE-125)

CVE-2021-41556
10.0
CVE-2013-0767
10.0
CVE-2021-21777
10.0
CVE-2009-2523
10.0
CVE-2017-14451
10.0
CVE-2026-34987
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-12378 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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