CVE-2020-12141

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Published Oct 19, 2021 CVSS 3.1 · 9.1 Critical EPSS 1.6% KEV · Not listed

Description

An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of service and potentially disclose information via crafted SNMP packets to snmp_ber_decode_string_len_buffer in os/net/app-layer/snmp/snmp-ber.c.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2020-4456	An out-of-bounds read in the SNMP stack in Contiki-NG 4.4 and earlier allows an attacker to cause a denial of service and potentially disclose information via crafted SNMP packets to snmp_ber_decode_string_len_buffer in os/net/app-layer/snmp/snmp-ber.c.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.6% (1.566% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/contiki-ng/contiki-ng/commit/12c824386ab60de757de5001974d73b32e19ad71#diff-32367fad664c6118fd5dda77cdf38eedc006cdd7544eca5bbeebe0b99653f8a0
https://github.com/contiki-ng/contiki-ng/pull/1355
https://twitter.com/ScepticCtf

History

No history.

Subscriptions

Contiki-ng Contiki-ng

Weaknesses

CWE-125

Sources

CVE record Updated: Aug 4, 2024, 11:48 AM

Status: PUBLISHED
Assigner: mitre
Published: Oct 19, 2021, 3:23 PM
Updated: Aug 4, 2024, 11:48 AM
Reserved: Apr 24, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 2:51 AM

Status: Modified
Published: Oct 19, 2021, 4:15 PM
Modified: Jun 17, 2026, 2:51 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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