Vulnerability Monitor

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CVE-2007-1673


unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.


Security Impact Summary

CVE-2007-1673 is a security vulnerability that . Impacting 13 products from amavis, from avast, from avast and 10 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2007, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.


Published

2007-05-09T01:19:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-399

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application amavis amavis ≤ 2.4.1 Yes
Application avast avast_antivirus ≤ 4.7.980 Yes
Application avast avast_antivirus 4.6.394 Yes
Application avast avast_antivirus 4.7.652 Yes
Application avast avast_antivirus 4.7.700 Yes
Application avast avast_antivirus_home 4.0 Yes
Application avast avast_antivirus_home 4.6 Yes
Application avast avast_antivirus_home 4.6.652 Yes
Application avast avast_antivirus_home 4.6.655 Yes
Application avast avast_antivirus_home 4.6.665 Yes
Application avast avast_antivirus_home 4.6.691 Yes
Application avast avast_antivirus_home 4.7.827 Yes
Application avast avast_antivirus_home 4.7.827 Yes
Application avast avast_antivirus_home 4.7.844 Yes
Application avast avast_antivirus_home 4.7.844 Yes
Application avast avast_antivirus_home 4.7.869 Yes
Application avast avast_antivirus_home 4.7.869 Yes
Application avast avast_antivirus_home 4.7.1043 Yes
Application avast avast_antivirus_home 4.7.1043 Yes
Application avast avast_antivirus_home 4.7.1098 Yes
Application avast avast_antivirus_home 4.7.1098 Yes
Application avast avast_antivirus_professional 4.0 Yes
Application avast avast_antivirus_professional 4.6 Yes
Application avast avast_antivirus_professional 4.6.603 Yes
Application avast avast_antivirus_professional 4.6.652 Yes
Application avast avast_antivirus_professional 4.6.665 Yes
Application avast avast_antivirus_professional 4.6.691 Yes
Application avast avast_antivirus_professional 4.7.827 Yes
Application avast avast_antivirus_professional 4.7.827 Yes
Application avast avast_antivirus_professional 4.7.844 Yes
Application avast avast_antivirus_professional 4.7.844 Yes
Application avast avast_antivirus_professional 4.7.869 Yes
Application avast avast_antivirus_professional 4.7.1043 Yes
Application avast avast_antivirus_professional 4.7.1043 Yes
Application avast avast_antivirus_professional 4.7.1098 Yes
Application avira antivir * Yes
Application avira antivir 6.35.00.00 Yes
Application avira antivir 7.04.00.23 Yes
Application avira antivir_personal * Yes
Application avira antivir_personal * Yes
Application avira antivir_personal * Yes
Application avira antivir_personal ≤ 7.3.0.5 Yes
Application avira antivir_personal 7 Yes
Application avira antivir_personal 7 Yes
Application panda panda_antivirus 2007 Yes
Application panda panda_antivirus_and_firewall 2007 Yes
Application picozip picozip * Yes
Application rahul_dhesi zoo ≤ 2.10 Yes
Application unzoo unzoo 4.4 Yes
Application winace winace * Yes
Hardware barracuda_networks barracuda_spam_firewall * Yes
Hardware barracuda_networks barracuda_spam_firewall model_100 Yes
Hardware barracuda_networks barracuda_spam_firewall model_200 Yes
Hardware barracuda_networks barracuda_spam_firewall model_300 Yes
Hardware barracuda_networks barracuda_spam_firewall model_400 Yes
Hardware barracuda_networks barracuda_spam_firewall model_500 Yes
Hardware barracuda_networks barracuda_spam_firewall model_600 Yes
Hardware barracuda_networks barracuda_spam_firewall model_800 Yes
Hardware barracuda_networks barracuda_spam_firewall model_900 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For amavis's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.