AVG/Avast Antivirus 24.1 on macOS Signature Verification null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in AVG/Avast Antivirus on macOS. Affected by this issue is some unknown functionality of the component Signature Verification Module. Performing a manipulation results in null pointer dereference. This vulnerability is known as CVE-2024-9483. Attacking locally is a requirement. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in AVG/Avast Antivirus on macOS. This affects some unknown functionality of the component Signature Verification Module. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

A null-pointer-dereference in the signature verification module in AVG/Avast Antivirus signature <24092400 released on 24/Sep/2024 on MacOS may allow a malformed xar file to crash the application during processing.

The advisory is shared at support.norton.com. This vulnerability is uniquely identified as CVE-2024-9483 since 10/03/2024. The exploitability is told to be difficult. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Upgrading to version 24092400 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

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

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

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 24092400

Timelineinfo

10/03/2024 🔍
10/04/2024 +1 days 🔍
10/04/2024 +0 days 🔍
11/09/2024 +36 days 🔍

Sourcesinfo

Advisory: support.norton.com
Status: Confirmed

CVE: CVE-2024-9483 (🔍)
GCVE (CVE): GCVE-0-2024-9483
GCVE (VulDB): GCVE-100-279225

Entryinfo

Created: 10/04/2024 15:59
Updated: 11/09/2024 03:27
Changes: 10/04/2024 15:59 (66), 11/09/2024 03:27 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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