Avast Antivirus up to 4.7.981 Zoo Archive unzoo.c denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Avast Antivirus up to 4.7.981. This vulnerability affects unknown code of the file unzoo.c of the component Zoo Archive Handler. This manipulation causes denial of service. This vulnerability is handled as CVE-2007-1669. Additionally, an exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Avast Antivirus up to 4.7.981 (Anti-Malware Software). Affected by this vulnerability is some unknown functionality of the file unzoo.c of the component Zoo Archive Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

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.

The weakness was released 05/08/2007 by Jean-Sebastien Guay-Leroux (Website). The advisory is shared at guay-leroux.com. This vulnerability is known as CVE-2007-1669 since 03/24/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (34080), Exploit-DB (3851), SecurityFocus (BID 23823†), OSVDB (37302†) and Secunia (SA25122†). Entries connected to this vulnerability are available at VDB-3066, VDB-3060, VDB-3073 and VDB-3090. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/24/2007 🔍
05/04/2007 +40 days 🔍
05/08/2007 +4 days 🔍
05/08/2007 +0 days 🔍
05/10/2007 +2 days 🔍
05/18/2007 +8 days 🔍
01/27/2025 +6464 days 🔍

Sourcesinfo

Advisory: guay-leroux.com
Researcher: Jean-Sebastien Guay-Leroux
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-1669 (🔍)
GCVE (CVE): GCVE-0-2007-1669
GCVE (VulDB): GCVE-100-3061
X-Force: 34080 - Multiple vendor ZOO archive decompression denial of service, Medium Risk
SecurityFocus: 23823
Secunia: 25122 - Barracuda Spam Firewall Zoo Denial of Service Vulnerability, Less Critical
OSVDB: 37302 - zoo Decoder unzoo.c Malformed Zoo Archive Handling DoS
Vupen: ADV-2007-1699

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 05/10/2007 14:57
Updated: 01/27/2025 09:58
Changes: 05/10/2007 14:57 (56), 08/04/2015 12:21 (12), 03/15/2021 13:29 (8), 03/15/2021 13:32 (2), 01/27/2025 09:58 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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