Avast Antivirus up to 4.7.1043 TAR Archive memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Avast Antivirus up to 4.7.1043. This impacts an unknown function of the component TAR Archive Handler. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2007-6265. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Avast Antivirus up to 4.7.1043 (Anti-Malware Software) and classified as critical. This vulnerability affects an unknown part of the component TAR Archive Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Unspecified vulnerability in avast! 4 Home and Professional Editions before 4.7.1098 allows remote attackers to have an unknown impact via a crafted TAR archive.

The bug was discovered 12/04/2007. The weakness was released 12/05/2007 by Sowhat with Nevis Labs (Website). The advisory is shared for download at avast.com. This vulnerability was named CVE-2007-6265 since 12/07/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k.

Upgrading to version 4.7.1098 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at avast.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (38877), SecurityFocus (BID 26702†), OSVDB (42501†), Secunia (SA27929†) and Vulnerability Center (SBV-17105†). Entries connected to this vulnerability are available at VDB-41806, VDB-50338 and VDB-50336. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Antivirus 4.7.1098
Patch: avast.com

Timelineinfo

12/04/2007 🔍
12/04/2007 +0 days 🔍
12/05/2007 +1 days 🔍
12/05/2007 +0 days 🔍
12/05/2007 +0 days 🔍
12/07/2007 +1 days 🔍
12/07/2007 +0 days 🔍
12/07/2007 +0 days 🔍
12/16/2007 +9 days 🔍
12/18/2007 +2 days 🔍
08/01/2019 +4244 days 🔍

Sourcesinfo

Advisory: avast.com
Researcher: Sowhat
Organization: Nevis Labs
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-6265 (🔍)
GCVE (CVE): GCVE-0-2007-6265
GCVE (VulDB): GCVE-100-3496
X-Force: 38877 - avast! 4 Home and Professional TAR code execution, High Risk
SecurityFocus: 26702 - avast! Home/Professional TAR File Handling Remote Heap Overflow Vulnerability
Secunia: 27929 - avast! Home/Professional TAR File Processing Heap Corruption, Highly Critical
OSVDB: 42501 - avast! Home/Professional TAR File Processing Unspecified Issue
Vulnerability Center: 17105 - ALWIL Avast! Anti-Virus Allows Remote Attackers to Execute Code via Arbitrary TAR File, Medium
Vupen: ADV-2007-4097

See also: 🔍

Entryinfo

Created: 12/18/2007 17:25
Updated: 08/01/2019 16:28
Changes: 12/18/2007 17:25 (85), 08/01/2019 16:28 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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