avast! Antivirus 4.6.394/4.7.652 memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in avast! Antivirus 4.6.394/4.7.652. This impacts an unknown function. Executing a manipulation can lead to memory corruption. This vulnerability appears as CVE-2007-2846. There is no available exploit. Upgrading the affected component is recommended. Once again VulDB remains the best source for vulnerability data.

Detailsinfo

A vulnerability has been found in avast! Antivirus 4.6.394/4.7.652 (Anti-Malware Software) and classified as critical. This vulnerability affects an unknown code block. 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:

Heap-based buffer overflow in the SIS unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted SIS archive, resulting from an "integer cast around."

The bug was discovered 05/25/2007. The weakness was presented 05/24/2007 by Sergio Alvarez with n.runs AG as confirmed advisory (CERT.org). The advisory is available at kb.cert.org. This vulnerability was named CVE-2007-2846 since 05/24/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 25337 (avast! CAB / SIS File Handling Buffer Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l.

Upgrading to version 4.7.700 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (34501), Tenable (25337), SecurityFocus (BID 24155†), OSVDB (36522†) and Secunia (SA25380†). See VDB-3094 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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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Nessus ID: 25337
Nessus Name: avast! CAB / SIS File Handling Buffer Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Antivirus 4.7.700

Timelineinfo

05/16/2007 🔍
05/24/2007 +8 days 🔍
05/24/2007 +0 days 🔍
05/24/2007 +0 days 🔍
05/24/2007 +0 days 🔍
05/24/2007 +0 days 🔍
05/24/2007 +0 days 🔍
05/25/2007 +0 days 🔍
05/25/2007 +0 days 🔍
05/25/2007 +0 days 🔍
05/30/2007 +5 days 🔍
03/13/2015 +2844 days 🔍
01/13/2025 +3594 days 🔍

Sourcesinfo

Advisory: kb.cert.org
Researcher: Sergio Alvarez
Organization: n.runs AG
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-2846 (🔍)
GCVE (CVE): GCVE-0-2007-2846
GCVE (VulDB): GCVE-100-36958
CERT: 🔍
X-Force: 34501
SecurityFocus: 24155 - Avast! Managed Client SIS File Handling Remote Heap Overflow Vulnerability
Secunia: 25380
OSVDB: 36522 - avast! Anti-Virus Managed Client SIS Unpacker Archive Handling Overflow
Vulnerability Center: 15254 - ALWIL Avast! Anti-Virus Heap Overflow Allows Arbitrary Code Execution, Medium
Vupen: ADV-2007-1935

See also: 🔍

Entryinfo

Created: 03/13/2015 02:56 PM
Updated: 01/13/2025 03:04 AM
Changes: 03/13/2015 02:56 PM (78), 07/20/2019 07:40 AM (1), 01/13/2025 03:04 AM (16)
Complete: 🔍
Cache ID: 244:35F:40

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