Lenovo Desktop BIOS BiosExtensionLoader buffer over-read

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Lenovo Desktop BIOS. The affected element is an unknown function of the component BiosExtensionLoader Module. Performing a manipulation results in buffer over-read. This vulnerability was named CVE-2023-43572. The attack needs to be approached locally. There is no available exploit.

Detailsinfo

A vulnerability was found in Lenovo Desktop BIOS (affected version unknown). It has been classified as problematic. This affects an unknown functionality of the component BiosExtensionLoader Module. The manipulation with an unknown input leads to a buffer over-read vulnerability. CWE is classifying the issue as CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. This is going to have an impact on confidentiality. The summary by CVE is:

A buffer over-read was reported in the BiosExtensionLoader module in some Lenovo Desktop products that may allow a local attacker with elevated privileges to disclose sensitive information.

The weakness was presented 11/09/2023. The advisory is shared at support.lenovo.com. This vulnerability is uniquely identified as CVE-2023-43572 since 09/19/2023. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.3

VulDB Base Score: 2.3
VulDB Temp Score: 2.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.4
CNA Vector (Lenovo Group Ltd.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / CWE-119
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/19/2023 🔍
11/09/2023 +51 days 🔍
11/09/2023 +0 days 🔍
11/09/2023 +0 days 🔍

Sourcesinfo

Vendor: lenovo.com

Advisory: support.lenovo.com
Status: Confirmed

CVE: CVE-2023-43572 (🔍)
GCVE (CVE): GCVE-0-2023-43572
GCVE (VulDB): GCVE-100-244833

Entryinfo

Created: 11/09/2023 04:01
Changes: 11/09/2023 04:01 (46)
Complete: 🔍
Cache ID: 216::103

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

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