CVE-2020-27678

An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c.

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://github.com/illumos/illumos-gate/commit/1d276e0b382cf066dae93640746d8b4c54d15452	Patch Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:illumos:illumos::::::::
	cpe:2.3:o:joyent:smartos::::::::
	cpe:2.3:o:omniosce:omnios:::::community:::*
	cpe:2.3:o:omniosce:omnios:::::community:::*
	cpe:2.3:o:omniosce:omnios::::::::

History

No history.

Information

Published : 2020-10-26 12:17

Updated : 2023-12-10 13:41

NVD link : CVE-2020-27678

Mitre link : CVE-2020-27678

CVE.ORG link : CVE-2020-27678

JSON object : View

Products Affected

omniosce

omnios

joyent

smartos

illumos

illumos

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

{"id": "CVE-2020-27678", "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}]}, "published": "2020-10-26T12:17:12.693", "references": [{"url": "https://github.com/illumos/illumos-gate/commit/1d276e0b382cf066dae93640746d8b4c54d15452", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-120"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c."}, {"lang": "es", "value": "Se detect\u00f3 un problema en illumos antes del 22-10-2020, como es usado en OmniOS versiones anteriores a r151030by, r151032ay y r151034y y SmartOS versiones anteriores a 20201022. Se presenta un desbordamiento de b\u00fafer en la funci\u00f3n parse_user_name en la biblioteca lib/libpam/pam_framework.c"}], "lastModified": "2020-10-27T17:34:13.187", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FCBBCFC9-C8F7-472C-AFFC-2C9DB468A719", "versionEndExcluding": "2020-10-22"}, {"criteria": "cpe:2.3:o:joyent:smartos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B9CD98CE-647E-4654-9F8E-A32440D8B993", "versionEndExcluding": "20201022"}, {"criteria": "cpe:2.3:o:omniosce:omnios:*:*:*:*:community:*:*:*", "vulnerable": true, "matchCriteriaId": "1A57BCA3-0D16-4232-9AA5-355827FC73F5", "versionEndExcluding": "r151030by"}, {"criteria": "cpe:2.3:o:omniosce:omnios:*:*:*:*:community:*:*:*", "vulnerable": true, "matchCriteriaId": "D53ADD04-9E73-4D07-AC1E-D9E545801EAD", "versionEndIncluding": "r151032ay", "versionStartIncluding": "r151032"}, {"criteria": "cpe:2.3:o:omniosce:omnios:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "67552C06-4B78-452B-A911-9C56F673B523", "versionEndExcluding": "r151034y", "versionStartIncluding": "r151034"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}