CVE-2023-3036 - Vulnerability Details - OpenCVE

An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71 enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0047.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Cloudflare Subscribe	Cfnts Subscribe

Configuration 1 [-]

cpe:2.3:a:cloudflare:cfnts:*:*:*:*:*:rust:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2023-43728	An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71 enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp

History

Thu, 02 Jan 2025 20:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Projects

Sign in to view the affected projects.

MITRE

Status: PUBLISHED

Assigner: cloudflare

Published: 2023-06-14T11:08:08.969Z

Updated: 2025-01-02T19:22:43.099Z

Reserved: 2023-06-01T13:38:17.881Z

Link: CVE-2023-3036

Vulnrichment

Updated: 2024-08-02T06:41:04.398Z

NVD

Status : Modified

Published: 2023-06-14T12:15:09.647

Modified: 2024-11-21T08:16:17.623

Link: CVE-2023-3036

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-3036", "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "state": "PUBLISHED", "assignerShortName": "cloudflare", "dateReserved": "2023-06-01T13:38:17.881Z", "datePublished": "2023-06-14T11:08:08.969Z", "dateUpdated": "2025-01-02T19:22:43.099Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://github.com", "defaultStatus": "unaffected", "packageName": "cfnts", "platforms": ["rust"], "product": "cfnts", "vendor": "Cloudflare", "versions": [{"lessThan": "< 783490b", "status": "affected", "version": "0", "versionType": "git"}]}], "credits": [{"lang": "en", "type": "reporter", "user": "00000000-0000-4000-9000-000000000000", "value": " Carlos L\u00f3pez (00xc)"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71\"><tt>783490b</tt></a><span style=\"background-color: rgb(255, 255, 255);\"> enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.</span><br>"}], "value": "An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71 \u00a0enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.\n"}], "impacts": [{"capecId": "CAPEC-540", "descriptions": [{"lang": "en", "value": "CAPEC-540 Overread Buffers"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "shortName": "cloudflare", "dateUpdated": "2023-06-14T11:08:28.361Z"}, "references": [{"url": "https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp"}], "source": {"discovery": "EXTERNAL"}, "title": "Out of Bounds Slice index in cfnts leads to remote panic", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T06:41:04.398Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-01-02T19:22:25.948021Z", "id": "CVE-2023-3036", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-02T19:22:43.099Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T06:41:04.398Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-3036", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-01-02T19:22:25.948021Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-02T19:22:38.097Z"}}], "cna": {"title": "Out of Bounds Slice index in cfnts leads to remote panic", "source": {"discovery": "EXTERNAL"}, "credits": [{"lang": "en", "type": "reporter", "user": "00000000-0000-4000-9000-000000000000", "value": " Carlos L\u00f3pez (00xc)"}], "impacts": [{"capecId": "CAPEC-540", "descriptions": [{"lang": "en", "value": "CAPEC-540 Overread Buffers"}]}], "metrics": [{"format": "CVSS", "cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "Cloudflare", "product": "cfnts", "versions": [{"status": "affected", "version": "0", "lessThan": "< 783490b", "versionType": "git"}], "platforms": ["rust"], "packageName": "cfnts", "collectionURL": "https://github.com", "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp"}], "x_generator": {"engine": "Vulnogram 0.1.0-dev"}, "descriptions": [{"lang": "en", "value": "An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71 \u00a0enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.\n", "supportingMedia": [{"type": "text/html", "value": "<span style=\"background-color: rgb(255, 255, 255);\">An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit </span><a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71\"><tt>783490b</tt></a><span style=\"background-color: rgb(255, 255, 255);\"> enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.</span><br>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-119", "description": "CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "providerMetadata": {"orgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "shortName": "cloudflare", "dateUpdated": "2023-06-14T11:08:28.361Z"}}}, "cveMetadata": {"cveId": "CVE-2023-3036", "state": "PUBLISHED", "dateUpdated": "2025-01-02T19:22:43.099Z", "dateReserved": "2023-06-01T13:38:17.881Z", "assignerOrgId": "a22f1246-ba21-4bb4-a601-ad51614c1513", "datePublished": "2023-06-14T11:08:08.969Z", "assignerShortName": "cloudflare"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cloudflare:cfnts:*:*:*:*:*:rust:*:*", "matchCriteriaId": "7EF27AB6-93DC-428C-95EE-46B241094EE2", "versionEndExcluding": "2023-06-01", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71 \u00a0enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.\n"}], "id": "CVE-2023-3036", "lastModified": "2024-11-21T08:16:17.623", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "cna@cloudflare.com", "type": "Secondary"}, {"cvssData": {"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, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-06-14T12:15:09.647", "references": [{"source": "cna@cloudflare.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/cloudflare/cfnts/security/advisories/GHSA-pwx6-gw47-96cp"}], "sourceIdentifier": "cna@cloudflare.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}, {"lang": "en", "value": "CWE-125"}], "source": "cna@cloudflare.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}