CVE-2021-38435

RTI Connext DDS Professional and Connext DDS Secure Versions 4.2x to 6.1.0 not correctly calculate the size when allocating the buffer, which may result in a buffer overflow.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F	Permissions Required Vendor Advisory
https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:rti:connext_dds_professional::::::::
	cpe:2.3:a:rti:connext_dds_secure::::::::

History

13 May 2022, 03:57

Type	Values Removed	Values Added
CPE		cpe:2.3:a:rti:connext_dds_professional:::::::: cpe:2.3:a:rti:connext_dds_secure::::::::
References	~~(CONFIRM) https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02 -~~	(CONFIRM) https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02 - Third Party Advisory, US Government Resource
References	~~(CONFIRM) https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F -~~	(CONFIRM) https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F - Permissions Required, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 7.5 v3 : 9.8

05 May 2022, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-05-05 17:15

Updated : 2024-02-04 22:29

NVD link : CVE-2021-38435

Mitre link : CVE-2021-38435

CVE.ORG link : CVE-2021-38435

JSON object : View

Products Affected

rti

connext_dds_secure
connext_dds_professional

CWE

CWE-131

Incorrect Calculation of Buffer Size

{"id": "CVE-2021-38435", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.6, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 4.7, "exploitabilityScore": 1.8}]}, "published": "2022-05-05T17:15:09.377", "references": [{"url": "https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F", "tags": ["Permissions Required", "Vendor Advisory"], "source": "ics-cert@hq.dhs.gov"}, {"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02", "tags": ["Third Party Advisory", "US Government Resource"], "source": "ics-cert@hq.dhs.gov"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-131"}]}], "descriptions": [{"lang": "en", "value": "RTI Connext DDS Professional and Connext DDS Secure Versions 4.2x to 6.1.0 not correctly calculate the size when allocating the buffer, which may result in a buffer overflow."}, {"lang": "es", "value": "RTI Connext DDS Professional y Connext DDS Secure versiones 4.2x a 6.1.0, no calculan correctamente el tama\u00f1o cuando asignan el b\u00fafer, lo que puede resultar en un desbordamiento del b\u00fafer"}], "lastModified": "2022-05-13T03:57:04.027", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rti:connext_dds_professional:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5D5193A2-D143-4EA1-B2CC-B0AC5071ECF3", "versionEndExcluding": "6.1.0", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:a:rti:connext_dds_secure:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "467FA1D5-3B68-4B82-BE13-2838C4DBF761", "versionEndExcluding": "6.1.0", "versionStartIncluding": "4.2"}], "operator": "OR"}]}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}