HOMEVULNERABILITIESCVE-2018-1000085
MEDIUM

CVE-2018-1000085

CWE-125Published: March 13, 2018· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

ClamAV version version 0.99.3 contains a Out of bounds heap memory read vulnerability in XAR parser, function xar_hash_check() that can result in Leaking of memory, may help in developing exploit chains.. This attack appear to be exploitable via The victim must scan a crafted XAR file. This vulnerability appears to have been fixed in after commit d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6.

NVD Source

Technical Analysis

CVE-2018-1000085 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

PATCHhttp://www.openwall.com/lists/oss-security/2017/09/29/4
PATCHhttps://github.com/Cisco-Talos/clamav-devel/commit/d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6
PATCHhttp://www.openwall.com/lists/oss-security/2017/09/29/4
PATCHhttps://github.com/Cisco-Talos/clamav-devel/commit/d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/03/msg00011.html
ADVISORYhttps://security.gentoo.org/glsa/201804-16
ADVISORYhttps://usn.ubuntu.com/3592-1/
ADVISORYhttps://usn.ubuntu.com/3592-2/
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/03/msg00011.html
ADVISORYhttps://security.gentoo.org/glsa/201804-16
ADVISORYhttps://usn.ubuntu.com/3592-1/
ADVISORYhttps://usn.ubuntu.com/3592-2/

All References (12)

→
http://www.openwall.com/lists/oss-security/2017/09/29/4Issue Tracking · Mailing List · Patch · Third Party Advisory
→
https://github.com/Cisco-Talos/clamav-devel/commit/d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6Patch
→
https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201804-16Third Party Advisory
→
https://usn.ubuntu.com/3592-1/Third Party Advisory
→
https://usn.ubuntu.com/3592-2/Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2017/09/29/4Issue Tracking · Mailing List · Patch · Third Party Advisory
→
https://github.com/Cisco-Talos/clamav-devel/commit/d96a6b8bcc7439fa7e3876207aa0a8e79c8451b6Patch
→
https://lists.debian.org/debian-lts-announce/2018/03/msg00011.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201804-16Third Party Advisory
→
https://usn.ubuntu.com/3592-1/Third Party Advisory
→
https://usn.ubuntu.com/3592-2/Third Party Advisory

Quick Facts

CVE IDCVE-2018-1000085
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-125
CISA KEVNo
Affected3 vendor(s)
PublishedMar 13, 2018

Related CVEs (CWE-125)

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

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1000085 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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