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TI-2017-04227 Aliases CVE-2017-6420GHSA-6v8q-f99w-979p

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to…

Priority LOW 28CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows remote attackers to cause a denial of service (use-after-free) via a crafted PE file with WWPack compression.

Why it matters now

EPSS 0.01375 72nd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:clamav:clamav:0.99.2:*:*:*:*:*:*:*0.99.2VulnerableClamAV
  • cpe:2.3:a:clamav:clamav:0.99.2:*:*:*:*:*:*:* Versions 0.99.2 Vulnerable ·ClamAV

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-6420
  2. 2026-10-03 Alias added: GHSA-6v8q-f99w-979p

References

Patch 1

Advisory 2

Other 1

  • TI-2024-13262 ClamAV VirusEvent File Processing Command Injection Vulnerability CVSS 3.1MEDIUM 5.3
  • TI-2023-06741 Buffer overflow in Cisco Secure Web Appliance CVSS 3.1CRITICAL 9.8
  • TI-2012-01281 The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir… CVSS 2.0MEDIUM 4.3
  • TI-2012-01279 The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!… CVSS 2.0MEDIUM 4.3
  • TI-2012-01265 The RAR file parser in ClamAV 0.96.4, Rising Antivirus 22.83.00.03, Quick Heal (aka Cat… CVSS 2.0MEDIUM 4.3
  • TI-2017-09151 Memory corruption in ClamAV AntiVirus software versions 0.99.2 and prior CVSS 3.0CRITICAL 9.8
See all 102 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences