VDB-279222 · CVE-2024-9481 · GCVE-0-2024-9481

AVG/Avast Antivirus 24.1 on macOS EML File out-of-bounds write

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
5.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in AVG/Avast Antivirus on macOS. It has been declared as critical. This impacts an unknown function of the component EML File Handler. The manipulation results in out-of-bounds write. This vulnerability is reported as CVE-2024-9481. The attack requires a local approach. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in AVG/Avast Antivirus on macOS. It has been classified as critical. Affected is some unknown processing of the component EML File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

An out-of-bounds write in the engine module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS allows a malformed eml file to crash the application during file processing.

The advisory is available at support.norton.com. This vulnerability is traded as CVE-2024-9481 since 10/03/2024. The exploitability is told to be difficult. Local access is required to approach this attack. The technical details are unknown and an exploit is not available.

Upgrading to version 24092400 eliminates this vulnerability.

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Productinfo

Type

Anti-Malware Software

Vendor

Name

Antivirus

Version

24.1

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.1
CNA Vector (NLOK): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Antivirus 24092400

Timelineinfo

10/06/1970 🔍
10/03/2024 +19720 days 🔍
10/04/2024 +1 days 🔍
10/04/2024 +0 days 🔍
11/09/2024 +35 days 🔍

Sourcesinfo

Advisory: support.norton.com
Status: Confirmed

CVE: CVE-2024-9481 (🔍)
GCVE (CVE): GCVE-0-2024-9481
GCVE (VulDB): GCVE-100-279222

Entryinfo

Created: 10/04/2024 14:57
Updated: 11/09/2024 00:22
Changes: 10/04/2024 14:57 (67), 11/09/2024 00:22 (12)
Complete: 🔍
Cache ID: 216::103