CVE-2021-38427

RTI Connext DDS Professional and Connext DDS Secure Versions 4.2.x to 6.1.0 are vulnerable to a stack-based buffer overflow, which may allow a local attacker to execute arbitrary code.

CVSS v3 6.6 MEDIUM
CVSS v2.0 4.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 4.7

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

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
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_professional::::::::
	cpe:2.3:a:rti:connext_secure::::::::

History

05 Feb 2025, 13:26

Type	Values Removed	Values Added
First Time		Rti connext Secure Rti connext Professional
CPE	cpe:2.3:a:rti:connext_dds_professional:::::::: cpe:2.3:a:rti:connext_dds_secure::::::::	cpe:2.3:a:rti:connext_secure:::::::: cpe:2.3:a:rti:connext_professional::::::::

21 Nov 2024, 06:17

Type	Values Removed	Values Added
CVSS	v2 : ~~4.6~~ v3 : ~~7.8~~	v2 : 4.6 v3 : 6.6
References	~~() https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F - Permissions Required, Vendor Advisory~~	() https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F - Permissions Required, Vendor Advisory
References	~~() https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02 - Third Party Advisory, US Government Resource~~	() https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02 - Third Party Advisory, US Government Resource

Information

Published : 2022-05-05 17:15

Updated : 2025-02-05 13:26

NVD link : CVE-2021-38427

Mitre link : CVE-2021-38427

CVE.ORG link : CVE-2021-38427

JSON object : View

Products Affected

rti

connext_professional
connext_secure

CWE

CWE-121

Stack-based Buffer Overflow

CWE-787

Out-of-bounds Write

{"id": "CVE-2021-38427", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.6, "accessVector": "LOCAL", "vectorString": "AV:L/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": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"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}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2022-05-05T17:15:09.147", "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"}, {"url": "https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2F", "tags": ["Permissions Required", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02", "tags": ["Third Party Advisory", "US Government Resource"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ics-cert@hq.dhs.gov", "description": [{"lang": "en", "value": "CWE-121"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "RTI Connext DDS Professional and Connext DDS Secure Versions 4.2.x to 6.1.0 are vulnerable to a stack-based buffer overflow, which may allow a local attacker to execute arbitrary code."}, {"lang": "es", "value": "RTI Connext DDS Professional y Connext DDS Secure versiones 4.2.x a 6.1.0, son vulnerables a un desbordamiento del b\u00fafer en la regi\u00f3n stack de la memoria, que puede permitir a un atacante local ejecutar c\u00f3digo arbitrario"}], "lastModified": "2025-02-05T13:26:20.443", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:rti:connext_professional:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "59534F50-E21C-484E-9BF3-4B51FD2A3DDE", "versionEndIncluding": "6.1.0", "versionStartIncluding": "4.2.0"}, {"criteria": "cpe:2.3:a:rti:connext_secure:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2357CC38-6BC3-4DBB-91D0-DEC399B70277", "versionEndIncluding": "6.1.0", "versionStartIncluding": "4.2.0"}], "operator": "OR"}]}], "sourceIdentifier": "ics-cert@hq.dhs.gov"}

6.6 /10