Multiple vendor ZOO archive decompression denial of service

multiple-vendor-zoo-dos (34080) The risk level is classified as MediumMedium Risk

Description:

Barracuda Spam Firewall, Panda Software Antivirus, avast! antivirus, Avira AntiVir, zoo, unzoo, WinAce, PicoZip, AMaViS, and multiple unspecified applications that handle ZOO archives are vulnerable to a denial of service, caused by an error in the ZOO compression algorithm implementation. By sending a specially-crafted ZOO archive, a remote attacker could exploit this vulnerability to consume all available system resources or crash the affected system.

*CVSS:

Base Score: 5
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 3.9
  Exploitability: Proof-Of-Concept
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

For Barracuda Spam Firewall:
Upgrade to the latest virus definition version of Barracuda Spam Firewall (virusdef 2.0.6399 for 3.4 and after or virusdef 2.0.6399o for prior to 3.4), available from the automatic update.

For Panda Software Antivirus:
Upgrade to the latest version of Panda Software Antivirus (4/2/2007 or later), available from the automatic update feature.

For avast! antivirus:
Upgrade to the latest version of Panda Software Antivirus (4.7.981 or later), available from the avast! antivirus Web site. See references.

For Avira AntiVir:
Upgrade to the latest version of Avira AntiVir (avpack32.dll version 7.3.0.6 or later), available from the automatic update feature.

For AMaViS:
Refer to ASA-2007-2 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • ASA-2007-2: ZOO archive decompression infinite loop DoS.
  • avast! antivirus Web site: avast! antivirus updates.
  • Avira AntiVir Web site: Anti virus for Linux, Windows and more with firewall, antispam, recovery security - Avira AntiVir.
  • Barracuda Spam Firewall Web site: Spam Filter / Spam Firewall / Web Filter / Spam Appliance / Load Balancer / Content Filter.
  • BugTraq Mailing List, Fri May 04 2007 - 10:14:45 CDT : Multiple vendors ZOO file decompression infinite loop DoS.
  • Panda Software Antivirus Web site: Antivirus, anti-spyware, anti-spam, firewall. Protect yourself with Panda.
  • PicoZip Web site: Zip and UnZip Files Easily - Download WinZip and PKZip compatible software.
  • unzoo Web site: Tools.
  • WinAce Web site: WinAce - your archiving companion.
  • zoo archive Web site: zoo: ZOO archive utilities.
  • BID-23823: Multiple Vendors Zoo Compression Algorithm Remote Denial of Service Vulnerability
  • CVE-2007-1669: zoo decoder 2.10 (zoo-2.10), as used in multiple products including (1) Barracuda Spam Firewall 3.4 and later with virusdef before 2.0.6399, (2) Spam Firewall before 3.4 20070319 with virusdef before 2.0.6399o, and (3) 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.
  • CVE-2007-1670: Panda Software Antivirus before 20070402 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.
  • CVE-2007-1671: avpack32.dll before 7.3.0.6 in Avira AntiVir 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.
  • CVE-2007-1672: avast! antivirus before 4.7.981 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.
  • 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.
  • CVE-2007-2535: WinAce 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.
  • CVE-2007-2536: PicoZip 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.
  • OSVDB ID: 35794: avast! Antivirus Crafted Zoo Archive DoS
  • OSVDB ID: 35795: Barracuda Spam Firewall Malformed Zoo Archive DoS
  • OSVDB ID: 35845: Panda AntiVirus Malformed Zoo Archive Handling DoS
  • OSVDB ID: 35911: Avira AntiVir avpack32.dll Malformed Zoo Handling DoS
  • OSVDB ID: 36208: unzoo ZOO Archive Malformed direntry Structure DoS
  • OSVDB ID: 37302: zoo Decoder unzoo.c Malformed Zoo Archive Handling DoS
  • OSVDB ID: 41750: WinAce ZOO Archive Decompression Infinite Loop DoS
  • OSVDB ID: 41751: PicoZip ZOO Archive Decompression Infinite Loop DoS
  • SA25122: Barracuda Spam Firewall Zoo Denial of Service Vulnerability
  • SA25137: avast! Zoo Denial of Service Vulnerability
  • SA25140: Avira AntiVir Zoo Denial of Service Vulnerability
  • SA25152: Panda AntiVirus Zoo Denial of Service Vulnerability
  • SA25315: Amavis Zoo Denial of Service Vulnerability
  • VUPEN/ADV-2007-1699: Barracuda Spam Firewall ZOO Archive Handling Denial of Service Vulnerability
  • VUPEN/ADV-2007-1700: Panda Antivirus Products ZOO Archive Handling Denial of Service Vulnerability
  • VUPEN/ADV-2007-1701: avast! Home/Professional ZOO Archive Processing Denial of Service Vulnerability
  • VUPEN/ADV-2007-1702: Avira AntiVir ZOO Archive Processing Client-Side Denial of Service Vulnerability

Platforms Affected:

  • Acubix PicoZip
  • Alwil avast! prior to 4.7.981
  • amavis.org AMaViS 2.4.1
  • Avira AntiVir prior to 7.3.0.6
  • Barracuda Networks Barracuda Spam Firewall prior to vd 2.0.6399
  • eMerge WinAce
  • linux.maruhn.com zoo 2.10 and prior
  • Open Source unzoo 4.4
  • Panda Software Panda Antivirus prior to 4/2/2007

Reported:

May 04, 2007

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