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Vulnerability Details :

CVE-2021-32771

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-04 Aug, 2022 | 20:25
Updated At-23 Apr, 2025 | 17:53
Rejected At-
Credits

Buffer overflow in contiki-ng

Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:04 Aug, 2022 | 20:25
Updated At:23 Apr, 2025 | 17:53
Rejected At:
▼CVE Numbering Authority (CNA)
Buffer overflow in contiki-ng

Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615.

Affected Products
Vendor
contiki-ng
Product
contiki-ng
Versions
Affected
  • < 4.8
Problem Types
TypeCWE IDDescription
CWECWE-120CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Type: CWE
CWE ID: CWE-120
Description: CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Metrics
VersionBase scoreBase severityVector
3.18.1HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w
x_refsource_CONFIRM
https://github.com/contiki-ng/contiki-ng/pull/1615
x_refsource_MISC
https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f
x_refsource_MISC
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8
x_refsource_MISC
Hyperlink: https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/contiki-ng/contiki-ng/pull/1615
Resource:
x_refsource_MISC
Hyperlink: https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f
Resource:
x_refsource_MISC
Hyperlink: https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w
x_refsource_CONFIRM
x_transferred
https://github.com/contiki-ng/contiki-ng/pull/1615
x_refsource_MISC
x_transferred
https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f
x_refsource_MISC
x_transferred
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/contiki-ng/contiki-ng/pull/1615
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8
Resource:
x_refsource_MISC
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:04 Aug, 2022 | 21:15
Updated At:10 Aug, 2022 | 18:08

Contiki-NG is an open-source, cross-platform operating system for IoT devices. In affected versions it is possible to cause a buffer overflow when copying an IPv6 address prefix in the RPL-Classic implementation in Contiki-NG. In order to trigger the vulnerability, the Contiki-NG system must have joined an RPL DODAG. After that, an attacker can send a DAO packet with a Target option that contains a prefix length larger than 128 bits. The problem was fixed after the release of Contiki-NG 4.7. Users unable to upgrade may apply the patch in Contiki-NG PR #1615.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.1HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Secondary3.18.1HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Primary
Version: 3.1
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.1
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches
contiki-ng
contiki-ng
>>contiki-ng>>Versions before 4.8(exclusive)
cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-120Primarysecurity-advisories@github.com
CWE ID: CWE-120
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/contiki-ng/contiki-ng/pull/1615security-advisories@github.com
Patch
Third Party Advisory
https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20fsecurity-advisories@github.com
Patch
Third Party Advisory
https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8security-advisories@github.com
Third Party Advisory
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6wsecurity-advisories@github.com
Third Party Advisory
Hyperlink: https://github.com/contiki-ng/contiki-ng/pull/1615
Source: security-advisories@github.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/contiki-ng/contiki-ng/pull/1615/commits/587ae59956e00316fd44fd7072ac3a6a07b4b20f
Source: security-advisories@github.com
Resource:
Patch
Third Party Advisory
Hyperlink: https://github.com/contiki-ng/contiki-ng/releases/tag/release%2Fv4.8
Source: security-advisories@github.com
Resource:
Third Party Advisory
Hyperlink: https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-jqjf-v7v9-xp6w
Source: security-advisories@github.com
Resource:
Third Party Advisory

Change History

0
Information is not available yet

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