Tianocore EDK II NetworkPkg/IScsiDxe buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Tianocore EDK II and classified as critical. This impacts an unknown function of the component NetworkPkg/IScsiDxe. Performing a manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2021-38575. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Tianocore EDK II (the affected version unknown). It has been classified as critical. This affects an unknown part of the component NetworkPkg/IScsiDxe. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 12/02/2021. The advisory is shared at bugzilla.tianocore.org. This vulnerability is uniquely identified as CVE-2021-38575 since 08/11/2021. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 208691 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : EDK II vulnerabilities (USN-7060-1)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (208691). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208691
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : EDK II vulnerabilities (USN-7060-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/11/2021 🔍
12/02/2021 +113 days 🔍
12/02/2021 +0 days 🔍
11/04/2025 +1433 days 🔍

Sourcesinfo

Advisory: bugzilla.tianocore.org
Status: Confirmed

CVE: CVE-2021-38575 (🔍)
GCVE (CVE): GCVE-0-2021-38575
GCVE (VulDB): GCVE-100-187449

Entryinfo

Created: 12/02/2021 07:38
Updated: 11/04/2025 09:43
Changes: 12/02/2021 07:38 (36), 12/08/2021 12:55 (1), 12/08/2021 13:02 (18), 10/11/2024 01:40 (16), 11/04/2025 09:43 (7)
Complete: 🔍
Cache ID: 216::103

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

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