Avast Antivirus prior 18.0.1478 Script Shield aswjsflt.dll heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Avast Antivirus. Affected by this vulnerability is an unknown functionality in the library aswjsflt.dll of the component Script Shield. The manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2022-4291. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Avast Antivirus (Anti-Malware Software) and classified as critical. This issue affects some unknown functionality in the library aswjsflt.dll of the component Script Shield. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The aswjsflt.dll library from Avast Antivirus windows contained a potentially exploitable heap corruption vulnerability that could enable an attacker to bypass the sandbox of the application it was loaded into, if applicable. This issue was fixed in version 18.0.1478 of the Script Shield Component.

The weakness was published 12/08/2022. The advisory is shared at support.norton.com. The identification of this vulnerability is CVE-2022-4291 since 12/05/2022. Technical details are known, but no exploit is available.

Upgrading to version 18.0.1478 eliminates this vulnerability.

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

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 10.0
NVD Vector: 🔍

CNA Base Score: 7.7
CNA Vector (NortonLifeLock Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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 18.0.1478

Timelineinfo

12/05/2022 🔍
12/08/2022 +3 days 🔍
12/08/2022 +0 days 🔍
01/01/2023 +24 days 🔍

Sourcesinfo

Advisory: support.norton.com
Status: Confirmed

CVE: CVE-2022-4291 (🔍)
GCVE (CVE): GCVE-0-2022-4291
GCVE (VulDB): GCVE-100-215105

Entryinfo

Created: 12/08/2022 07:56
Updated: 01/01/2023 12:20
Changes: 12/08/2022 07:56 (51), 01/01/2023 12:20 (11)
Complete: 🔍
Cache ID: 216::103

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

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