gsd-2018-5733
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2018-5733", "description": "A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0.", "id": "GSD-2018-5733", "references": [ "https://www.suse.com/security/cve/CVE-2018-5733.html", "https://www.debian.org/security/2018/dsa-4133", "https://access.redhat.com/errata/RHSA-2018:0483", "https://access.redhat.com/errata/RHSA-2018:0469", "https://ubuntu.com/security/CVE-2018-5733", "https://advisories.mageia.org/CVE-2018-5733.html", "https://security.archlinux.org/CVE-2018-5733", "https://alas.aws.amazon.com/cve/html/CVE-2018-5733.html", "https://linux.oracle.com/cve/CVE-2018-5733.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2018-5733" ], "details": "A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0.", "id": "GSD-2018-5733", "modified": "2023-12-13T01:22:39.944349Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "security-officer@isc.org", "DATE_PUBLIC": "2018-02-28T00:00:00.000Z", "ID": "CVE-2018-5733", "STATE": "PUBLIC", "TITLE": "A malicious client can overflow a reference counter in ISC dhcpd" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "ISC DHCP", "version": { "version_data": [ { "version_name": "ISC DHCP", "version_value": "4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0" } ] } } ] }, "vendor_name": "ISC" } ] } }, "credit": [ { "lang": "eng", "value": "ISC would like to thank Felix Wilhelm, Google Security Team, for reporting this vulnerability." } ], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0." } ] }, "impact": { "cvss": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "Successful exploitation of this vulnerability may exhaust the memory available to dhcpd and/or cause it to crash, resulting in a denial of service to clients." } ] } ] }, "references": { "reference_data": [ { "name": "https://kb.isc.org/docs/aa-01567", "refsource": "CONFIRM", "url": "https://kb.isc.org/docs/aa-01567" }, { "name": "RHSA-2018:0469", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2018:0469" }, { "name": "DSA-4133", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2018/dsa-4133" }, { "name": "USN-3586-2", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/3586-2/" }, { "name": "RHSA-2018:0483", "refsource": "REDHAT", "url": "https://access.redhat.com/errata/RHSA-2018:0483" }, { "name": "USN-3586-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/3586-1/" }, { "name": "103188", "refsource": "BID", "url": "http://www.securityfocus.com/bid/103188" }, { "name": "1040437", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1040437" }, { "name": "[debian-lts-announce] 20180322 [SECURITY] [DLA 1313-1] isc-dhcp security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html" } ] }, "solution": [ { "lang": "eng", "value": "Upgrade to the patched release most closely related to your current version of DHCP.\n\n DHCP 4.1-ESV-R15-P1\n DHCP 4.3.6-P1\n DHCP 4.4.1" } ], "source": { "discovery": 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Affects ISC DHCP 4.1.0 -\u003e 4.1-ESV-R15, 4.2.0 -\u003e 4.2.8, 4.3.0 -\u003e 4.3.6, 4.4.0." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-190" } ] } ] }, "references": { "reference_data": [ { "name": "https://kb.isc.org/docs/aa-01567", "refsource": "CONFIRM", "tags": [ "Vendor Advisory" ], "url": "https://kb.isc.org/docs/aa-01567" }, { "name": "DSA-4133", "refsource": "DEBIAN", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2018/dsa-4133" }, { "name": "USN-3586-2", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/3586-2/" }, { "name": "USN-3586-1", "refsource": "UBUNTU", "tags": [ "Third Party Advisory" ], "url": "https://usn.ubuntu.com/3586-1/" }, { "name": "[debian-lts-announce] 20180322 [SECURITY] [DLA 1313-1] isc-dhcp security update", "refsource": "MLIST", "tags": [ "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00015.html" }, { "name": "RHSA-2018:0483", "refsource": "REDHAT", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2018:0483" }, { "name": "RHSA-2018:0469", "refsource": "REDHAT", "tags": [ "Third Party Advisory" ], "url": "https://access.redhat.com/errata/RHSA-2018:0469" }, { "name": "1040437", "refsource": "SECTRACK", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://www.securitytracker.com/id/1040437" }, { "name": "103188", "refsource": "BID", "tags": [ "Third Party Advisory", "VDB Entry" ], "url": "http://www.securityfocus.com/bid/103188" } ] } }, "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": "2020-01-09T21:08Z", "publishedDate": "2019-01-16T20:29Z" } } }
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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.
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- 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.