CVE-2012-1459: Ahnlab v3 Internet Security

Medium severity, CVSS 4.3. EPSS: 99.8% chance of exploitation in the next 30 days.

The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast! Antivirus 4.8.1351.0 and 5.0.677.0, AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Quick Heal (aka Cat QuickHeal) 11.00, ClamAV 0.96.4, Command Antivirus 5.2.11.5, Comodo Antivirus 7424, Emsisoft Anti-Malware 5.1.0.1, F-Prot Antivirus 4.6.2.117, F-Secure Anti-Virus 9.0.16160.0, Fortinet Antivirus 4.2.254.0, G Data AntiVirus 21, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, Jiangmin Antivirus 13.0.900, K7 AntiVirus 9.77.3565, Kaspersky Anti-Virus 7.0.0.125, McAfee Anti-Virus Scanning Engine 5.400.0.1158, McAfee Gateway (formerly Webwasher) 2010.1C, Antimalware Engine 1.1.6402.0 in Microsoft Security Essentials 2.0, NOD32 Antivirus 5795, Norman Antivirus 6.06.12, nProtect Anti-Virus 2011-01-17.01, Panda Antivirus 10.0.2.7, PC Tools AntiVirus 7.0.3.5, Rising Antivirus 22.83.00.03, Sophos Anti-Virus 4.61.0, AVEngine 20101.3.0.103 in Symantec Endpoint Protection 11, Trend Micro AntiVirus 9.120.0.1004, Trend Micro HouseCall 9.120.0.1004, VBA32 3.12.14.2, and VirusBuster 13.6.151.0 allows remote attackers to bypass malware detection via a TAR archive entry with a length field corresponding to that entire entry, plus part of the header of the next entry. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR parser implementations.

Affected products

  • Ahnlab v3 Internet Security: version 2011.01.18.00 only
  • Alwil Avast Antivirus: version 4.8.1351.0 only; version 5.0.677.0 only
  • Anti-Virus VBA32: version 3.12.14.2 only
  • Antiy Avl SDK: version 2.0.3.7 only
  • Authentium Command Antivirus: version 5.2.11.5 only
  • Avg Avg Anti-Virus: version 10.0.0.1190 only
  • Avira Antivir: version 7.11.1.163 only
  • Bitdefender Bitdefender: version 7.2 only
  • Cat Quick Heal: version 11.00 only
  • Clamav Clamav: version 0.96.4 only
  • Comodo Comodo Antivirus: version 7424 only
  • Emsisoft Anti-Malware: version 5.1.0.1 only
  • Eset NOD32 Antivirus: version 5795 only
  • F-Prot F-Prot Antivirus: version 4.6.2.117 only
  • F-Secure F-Secure Anti-Virus: version 9.0.16160.0 only
  • Fortinet Fortinet Antivirus: version 4.2.254.0 only
  • Gdata-Software G Data Antivirus: version 21 only
  • Ikarus Ikarus Virus Utilities t3 Command Line Scanner: version 1.1.97.0 only
  • Jiangmin Jiangmin Antivirus: version 13.0.900 only
  • k7computing Antivirus: version 9.77.3565 only
  • Kaspersky Kaspersky Anti-Virus: version 7.0.0.125 only
  • McAfee Gateway: version 2010.1c only
  • McAfee Scan Engine: version 5.400.0.1158 only
  • Microsoft Security Essentials: version 2.0 only
  • Norman Norman Antivirus & Antispyware: version 6.06.12 only
  • and 9 more

Published 2012-03-21. Last modified 2026-06-16.