CVE-2021-21410
CVSS V2 Medium 6.4
CVSS V3 Critical 9.1
Description
Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bounds read can be triggered by 6LoWPAN packets sent to devices running Contiki-NG 4.6 and prior. The IPv6 header decompression function (<code>uncompress_hdr_iphc</code>) does not perform proper boundary checks when reading from the packet buffer. Hence, it is possible to construct a compressed 6LoWPAN packet that will read more bytes than what is available from the packet buffer. As of time of publication, there is not a release with a patch available. Users can apply the patch for this vulnerability out-of-band as a workaround.
Overview
- CVE ID
- CVE-2021-21410
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-06-18T21:15:07
- Last Modified Date
- 2021-06-24T19:27:44
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:o:contiki-ng:contiki-ng:*:*:*:*:*:*:*:* | 1 | OR | 4.6 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.1
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.2
References
Reference URL | Reference Tags |
---|---|
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-hhwj-2p59-v8p9 | Patch Third Party Advisory |
https://github.com/contiki-ng/contiki-ng/pull/1482 | Patch Third Party Advisory |
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-21410 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21410 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-05-10 07:09:55 | Added to TrackCVE | |||
2022-12-05 04:39:01 | 2021-06-18T21:15Z | 2021-06-18T21:15:07 | CVE Published Date | updated |
2022-12-05 04:39:01 | 2021-06-24T19:27:44 | CVE Modified Date | updated | |
2022-12-05 04:39:01 | Analyzed | Vulnerability Status | updated |