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TI-2017-09146 Aliases CVE-2017-12374GHSA-83mc-pmqp-53x3

Use after free in ClamAV AntiVirus software versions 0.99.2 and prior

Priority MEDIUM 47CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
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 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 a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.04982 92nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—ClamAV AntiVirus software versions 0.99.2 and priorClamAV AntiVirus software versions 0.99.2 and prior—No fix listedCNA
  • ClamAV AntiVirus software versions 0.99.2 and prior Vendor— Affected ClamAV AntiVirus software versions 0.99.2 and prior Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*up to 0.99.2VulnerableClamAV
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:* Versions up to 0.99.2 Vulnerable ·ClamAV

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    ClamAV AntiVirus software versions 0.99.2 and prior — USN-3550-1

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2017-09151 Memory corruption in ClamAV AntiVirus software versions 0.99.2 and priorPriority MEDIUM 63
    • TI-2017-09149 Out-of-bounds read in ClamAV AntiVirus software versions 0.99.2 and priorPriority MEDIUM 62
    • TI-2017-09152 NULL pointer dereference in ClamAV AntiVirus software versions 0.99.2 and priorPriority MEDIUM 47
    Show all 7 records → Advisory →
  • Advisory ·

    ClamAV AntiVirus software versions 0.99.2 and prior — USN-3550-2

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2017-09151 Memory corruption in ClamAV AntiVirus software versions 0.99.2 and priorPriority MEDIUM 63
    • TI-2017-09149 Out-of-bounds read in ClamAV AntiVirus software versions 0.99.2 and priorPriority MEDIUM 62
    • TI-2017-09152 NULL pointer dereference in ClamAV AntiVirus software versions 0.99.2 and priorPriority MEDIUM 47
    Show all 7 records → Advisory →

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-2017-12374
  2. 2026-10-03 Alias added: GHSA-83mc-pmqp-53x3

References

Exploit 1

Advisory 4

Sources

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