gsd-2019-8460
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
OpenBSD kernel version <= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2019-8460", "description": "OpenBSD kernel version \u003c= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.", "id": "GSD-2019-8460" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2019-8460" ], "details": "OpenBSD kernel version \u003c= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service.", "id": "GSD-2019-8460", "modified": "2023-12-13T01:23:48.009038Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@checkpoint.com", "ID": "CVE-2019-8460", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "OpenBSD", "version": { "version_data": [ { "version_value": "All, including latest - 6.5" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "OpenBSD kernel version \u003c= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-1049" } ] } ] }, "references": { "reference_data": [ { "name": "https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f", "refsource": "MISC", "url": "https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f" }, { "name": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig", "refsource": "MISC", "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig" }, { "name": "https://security.netapp.com/advisory/ntap-20190905-0001/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20190905-0001/" }, { "name": "https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/", "refsource": "MISC", "url": "https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/" }, { "name": "https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03", "refsource": "MISC", "url": "https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndIncluding": "6.5", "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "cve@checkpoint.com", "ID": "CVE-2019-8460" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "OpenBSD kernel version \u003c= 6.5 can be forced to create long chains of TCP SACK holes that causes very expensive calls to tcp_sack_option() for every incoming SACK packet which can lead to a denial of service." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "NVD-CWE-Other" } ] } ] }, "references": { "reference_data": [ { "name": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig", "refsource": "MISC", "tags": [ "Exploit", "Vendor Advisory" ], "url": "https://ftp.openbsd.org/pub/OpenBSD/patches/6.5/common/006_tcpsack.patch.sig" }, { "name": "https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f", "refsource": "MISC", "tags": [ "Patch", "Third Party Advisory" ], "url": "https://github.com/openbsd/src/commit/ed8fdce754a5d8d14c09e989d8877707bd43906f" }, { "name": "https://security.netapp.com/advisory/ntap-20190905-0001/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20190905-0001/" }, { "name": "https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/", "refsource": "MISC", "tags": [ "Exploit", "Patch", "Press/Media Coverage", "Third Party Advisory" ], "url": "https://research.checkpoint.com/tcp-sack-security-issue-in-openbsd-cve-2019-8460/" }, { "name": "https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03", "refsource": "MISC", "tags": [], "url": "https://us-cert.cisa.gov/ics/advisories/icsa-19-253-03" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } }, "lastModifiedDate": "2021-08-02T17:15Z", "publishedDate": "2019-08-26T20:15Z" } } }
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- 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.
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- 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.