Security readout for executives and security teams
Plain-English summary
This flaw can make vulnerable ClamAV scanners hang when they inspect a specially crafted Hangul Word Processor file. The main business risk is interruption of malware scanning, mail filtering, or document-processing workflows that depend on ClamAV.
Executive priority
Treat this as a routine but timely availability fix. It is not shown as actively exploited, but scanners in email or upload paths can become operational bottlenecks if left vulnerable.
Technical view
CVE-2018-0360 is an integer overflow in parsehwp3_paragraph() in libclamav/hwp.c in ClamAV before 0.100.1. A crafted HWP file can trigger an infinite loop during parsing, causing denial of service in affected scanning processes.
Likely exposure
Exposure is most likely where ClamAV before 0.100.1 scans user-supplied documents, email attachments, file uploads, or repositories that may contain HWP files. The bundle does not identify affected downstream appliances or managed services.
Exploitation context
The provided sources describe a crafted-file denial-of-service condition. CISA KEV status is false, and the bundle provides no evidence of active exploitation or public weaponization.
Researcher notes
Evidence is limited to the CVE description and vendor/security advisories. No CVSS, CWE, exploit status, or detailed workaround is provided in the bundle. Focus validation on version state and HWP-capable document scanning paths.
Mitigation direction
- Upgrade ClamAV to 0.100.1 or later.
- Apply relevant OS vendor security updates for packaged ClamAV deployments.
- Prioritize internet-facing upload, email, and file-scanning systems.
- If upgrade is delayed, consult vendor guidance for supported temporary controls.
Validation and detection
- Inventory all ClamAV installations and package versions.
- Confirm each scanner runs 0.100.1 or a vendor-fixed package.
- Identify workflows that scan user-submitted HWP or office documents.
- Review scanner health, queue depth, and service restart history.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-0360 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://blog.clamav.net/2018/07/clamav-01001-has-been-released.htmlCVE reference · x_refsource_CONFIRM
- USN-3722-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-12/CVE reference · x_refsource_MISC
- USN-3722-2CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20180820 [SECURITY] [DLA 1461-1] clamav security updateCVE reference · mailing-list, x_refsource_MLIST
- GLSA-201904-12CVE reference · vendor-advisory, x_refsource_GENTOO
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.