CVE-2023-30847 - Vulnerability Details - OpenCVE

H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Vendors	Products
Dena	H2o

Configuration 1 [-]

OR	cpe:2.3:a:dena:h2o::::::::
	cpe:2.3:a:dena:h2o:2.3.0:beta1::::::
	cpe:2.3:a:dena:h2o:2.3.0:beta2::::::

No data.

References

Link	Providers
https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33
https://github.com/h2o/h2o/pull/3229
https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx

History

Thu, 30 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'}`

MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2023-04-27T14:08:35.112Z

Updated: 2025-01-30T19:51:44.963Z

Reserved: 2023-04-18T16:13:15.881Z

Link: CVE-2023-30847

Vulnrichment

Updated: 2024-08-02T14:37:15.566Z

NVD

Status : Modified

Published: 2023-04-27T15:15:13.833

Modified: 2024-11-21T08:00:57.810

Link: CVE-2023-30847

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-30847", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2023-04-18T16:13:15.881Z", "datePublished": "2023-04-27T14:08:35.112Z", "dateUpdated": "2025-01-30T19:51:44.963Z"}, "containers": {"cna": {"title": "H2O vulnerable to read from uninitialized pointer in the reverse proxy handler", "problemTypes": [{"descriptions": [{"cweId": "CWE-824", "lang": "en", "description": "CWE-824: Access of Uninitialized Pointer", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx"}, {"name": "https://github.com/h2o/h2o/pull/3229", "tags": ["x_refsource_MISC"], "url": "https://github.com/h2o/h2o/pull/3229"}, {"name": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33", "tags": ["x_refsource_MISC"], "url": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33"}], "affected": [{"vendor": "h2o", "product": "h2o", "versions": [{"version": "<= 2.3.0-beta2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-04-27T14:08:35.112Z"}, "descriptions": [{"lang": "en", "value": "H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later."}], "source": {"advisory": "GHSA-p5hj-phwj-hrvx", "discovery": "UNKNOWN"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T14:37:15.566Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx"}, {"name": "https://github.com/h2o/h2o/pull/3229", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/h2o/h2o/pull/3229"}, {"name": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-01-30T19:51:39.518738Z", "id": "CVE-2023-30847", "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": "2025-01-30T19:51:44.963Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx", "name": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx", "tags": ["x_refsource_CONFIRM", "x_transferred"]}, {"url": "https://github.com/h2o/h2o/pull/3229", "name": "https://github.com/h2o/h2o/pull/3229", "tags": ["x_refsource_MISC", "x_transferred"]}, {"url": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33", "name": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33", "tags": ["x_refsource_MISC", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T14:37:15.566Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-30847", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-01-30T19:51:39.518738Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-01-30T19:51:28.176Z"}}], "cna": {"title": "H2O vulnerable to read from uninitialized pointer in the reverse proxy handler", "source": {"advisory": "GHSA-p5hj-phwj-hrvx", "discovery": "UNKNOWN"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}], "affected": [{"vendor": "h2o", "product": "h2o", "versions": [{"status": "affected", "version": "<= 2.3.0-beta2"}]}], "references": [{"url": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx", "name": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/h2o/h2o/pull/3229", "name": "https://github.com/h2o/h2o/pull/3229", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33", "name": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-824", "description": "CWE-824: Access of Uninitialized Pointer"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2023-04-27T14:08:35.112Z"}}}, "cveMetadata": {"cveId": "CVE-2023-30847", "state": "PUBLISHED", "dateUpdated": "2025-01-30T19:51:44.963Z", "dateReserved": "2023-04-18T16:13:15.881Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2023-04-27T14:08:35.112Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*", "matchCriteriaId": "3C540EDB-1F68-47E9-A457-B6BC1EB805D7", "versionEndIncluding": "2.2.6", "vulnerable": true}, {"criteria": "cpe:2.3:a:dena:h2o:2.3.0:beta1:*:*:*:*:*:*", "matchCriteriaId": "128D1D5E-4E71-4ABB-B580-F17E2B74B5F3", "vulnerable": true}, {"criteria": "cpe:2.3:a:dena:h2o:2.3.0:beta2:*:*:*:*:*:*", "matchCriteriaId": "E69DE676-300A-4A95-A04D-7463CA372799", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "H2O is an HTTP server. In versions 2.3.0-beta2 and prior, when the reverse proxy handler tries to processes a certain type of invalid HTTP request, it tries to build an upstream URL by reading from uninitialized pointer. This behavior can lead to crashes or leak of information to back end HTTP servers. Pull request number 3229 fixes the issue. The pull request has been merged to the `master` branch in commit f010336. Users should upgrade to commit f010336 or later."}], "id": "CVE-2023-30847", "lastModified": "2024-11-21T08:00:57.810", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-04-27T15:15:13.833", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/h2o/h2o/pull/3229"}, {"source": "security-advisories@github.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/h2o/h2o/commit/f010336bab162839df43d9e87570897466c97e33"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://github.com/h2o/h2o/pull/3229"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://github.com/h2o/h2o/security/advisories/GHSA-p5hj-phwj-hrvx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-824"}], "source": "security-advisories@github.com", "type": "Secondary"}]}