CVE-2021-42074
Vulnerability from cvelistv5
Published
2021-11-08 03:52
Modified
2024-08-04 03:22
Severity ?
EPSS score ?
Summary
An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session.
References
▼ | URL | Tags | |
---|---|---|---|
cve@mitre.org | http://www.openwall.com/lists/oss-security/2021/11/02/4 | Exploit, Mailing List, Third Party Advisory | |
cve@mitre.org | https://github.com/debauchee/barrier/releases/tag/v2.3.4 | Release Notes, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2021/11/02/4 | Exploit, Mailing List, Third Party Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | https://github.com/debauchee/barrier/releases/tag/v2.3.4 | Release Notes, Third Party Advisory |
{ "containers": { "adp": [ { "providerMetadata": { "dateUpdated": "2024-08-04T03:22:25.990Z", "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE" }, "references": [ { "name": "[oss-security] 20211102 Barrier \"software KVM switch\" multiple remote security issues", "tags": [ "mailing-list", "x_refsource_MLIST", "x_transferred" ], "url": "http://www.openwall.com/lists/oss-security/2021/11/02/4" }, { "tags": [ "x_refsource_MISC", "x_transferred" ], "url": "https://github.com/debauchee/barrier/releases/tag/v2.3.4" } ], "title": "CVE Program Container" } ], "cna": { "affected": [ { "product": "n/a", "vendor": "n/a", "versions": [ { "status": "affected", "version": "n/a" } ] } ], "descriptions": [ { "lang": "en", "value": "An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session." } ], "problemTypes": [ { "descriptions": [ { "description": "n/a", "lang": "en", "type": "text" } ] } ], "providerMetadata": { "dateUpdated": "2021-11-08T03:52:01", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre" }, "references": [ { "name": "[oss-security] 20211102 Barrier \"software KVM switch\" multiple remote security issues", "tags": [ "mailing-list", "x_refsource_MLIST" ], "url": "http://www.openwall.com/lists/oss-security/2021/11/02/4" }, { "tags": [ "x_refsource_MISC" ], "url": "https://github.com/debauchee/barrier/releases/tag/v2.3.4" } ], "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "cve@mitre.org", "ID": "CVE-2021-42074", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "n/a", "version": { "version_data": [ { "version_value": "n/a" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "[oss-security] 20211102 Barrier \"software KVM switch\" multiple remote security issues", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/11/02/4" }, { "name": "https://github.com/debauchee/barrier/releases/tag/v2.3.4", "refsource": "MISC", "url": "https://github.com/debauchee/barrier/releases/tag/v2.3.4" } ] } } } }, "cveMetadata": { "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2021-42074", "datePublished": "2021-11-08T03:52:01", "dateReserved": "2021-10-07T00:00:00", "dateUpdated": "2024-08-04T03:22:25.990Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2021-42074\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2021-11-08T04:15:08.547\",\"lastModified\":\"2024-11-21T06:27:11.730\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An issue was discovered in Barrier before 2.3.4. An unauthenticated attacker can cause a segmentation fault in the barriers component (aka the server-side implementation of Barrier) by quickly opening and closing TCP connections while sending a Hello message for each TCP session.\"},{\"lang\":\"es\",\"value\":\"Se ha detectado un problema en Barrier versiones anteriores a 2.3.4. Un atacante no autenticado puede causar un fallo de segmentaci\u00f3n en el componente de barreras (tambi\u00e9n conocido como la implementaci\u00f3n del lado del servidor de Barrier) al abrir y cerrar r\u00e1pidamente las conexiones TCP mientras env\u00eda un mensaje Hello para cada sesi\u00f3n TCP\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.3.4\",\"matchCriteriaId\":\"A6C0BAE9-F93E-42B3-8E3A-54B3FCA5D4B9\"}]}]}],\"references\":[{\"url\":\"http://www.openwall.com/lists/oss-security/2021/11/02/4\",\"source\":\"cve@mitre.org\",\"tags\":[\"Exploit\",\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/debauchee/barrier/releases/tag/v2.3.4\",\"source\":\"cve@mitre.org\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/11/02/4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://github.com/debauchee/barrier/releases/tag/v2.3.4\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Third Party Advisory\"]}]}}" } }
Loading…
Loading…
Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.