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Vulnerability Details :

CVE-2021-3434

Assigner-zephyr

Assigner Org ID-e2e69745-5e70-4e92-8431-deb5529a81ad

Published At-28 Jun, 2022 | 19:45

Updated At-17 Sep, 2024 | 00:36

L2CAP: Stack based buffer overflow in le_ecred_conn_req()

Stack based buffer overflow in le_ecred_conn_req(). Zephyr versions >= v2.5.0 Stack-based Buffer Overflow (CWE-121). For more information, see https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm

EPSS History

Score

Latest Score

N/A

Percentile

Latest Percentile

N/A

▼Common Vulnerabilities and Exposures (CVE)

cve.org

Assigner:zephyr

Assigner Org ID:e2e69745-5e70-4e92-8431-deb5529a81ad

Published At:28 Jun, 2022 | 19:45

Updated At:17 Sep, 2024 | 00:36

▼CVE Numbering Authority (CNA)

L2CAP: Stack based buffer overflow in le_ecred_conn_req()

Affected Products

Vendor

Zephyr Project

Product

zephyr

Versions

Affected

From v2.5.0 before unspecified (custom)
From v2.6.0 before unspecified (custom)

Problem Types

Type	CWE ID	Description
CWE	CWE-121	Stack-based Buffer Overflow (CWE-121)

Type: CWE

CWE ID: CWE-121

Description: Stack-based Buffer Overflow (CWE-121)

Metrics

Version	Base score	Base severity	Vector
3.1	4.9	MEDIUM	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Version: 3.1

Base score: 4.9

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References

Hyperlink	Resource
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm	x_refsource_MISC

Hyperlink: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm

Resource:

x_refsource_MISC

▼Authorized Data Publishers (ADP)

CVE Program Container

References

Hyperlink	Resource
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm	x_refsource_MISC x_transferred

Hyperlink: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm

Resource:

x_refsource_MISC

x_transferred

▼National Vulnerability Database (NVD)

nvd.nist.gov

Source:vulnerabilities@zephyrproject.org

Published At:28 Jun, 2022 | 20:15

Updated At:08 Jul, 2022 | 15:21

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Primary	3.1	7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Secondary	3.1	4.9	MEDIUM	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Primary	2.0	4.6	MEDIUM	AV:L/AC:L/Au:N/C:P/I:P/A:P

Type: Primary

Version: 3.1

Base score: 7.8

Base severity: HIGH

Vector:

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Type: Secondary

Version: 3.1

Base score: 4.9

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Type: Primary

Version: 2.0

Base score: 4.6

Base severity: MEDIUM

Vector:

AV:L/AC:L/Au:N/C:P/I:P/A:P

CPE Matches

Zephyr Project

>>zephyr>>Versions from 2.5.0(inclusive) to 2.6.0(exclusive)

cpe:2.3:o:zephyrproject:zephyr:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-787	Primary	nvd@nist.gov
CWE-121	Secondary	vulnerabilities@zephyrproject.org

CWE ID: CWE-787

Type: Primary

Source: nvd@nist.gov

CWE ID: CWE-121

Type: Secondary

Source: vulnerabilities@zephyrproject.org

References

Hyperlink	Source	Resource
http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm	vulnerabilities@zephyrproject.org	Vendor Advisory

Hyperlink: http://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-8w87-6rfp-cfrm

Source: vulnerabilities@zephyrproject.org

Resource:

Vendor Advisory

CVE-2021-3434

Credits

L2CAP: Stack based buffer overflow in le_ecred_conn_req()

Vendors

Products

Metrics (CVSS)

Weaknesses

Attack Patterns

Solution/Workaround

References

EPSS History

Score

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Stakeholder-Specific Vulnerability Categorization (SSVC)

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Affected

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Replaced By

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Metrics Other Info

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Change History

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