CVE-2016-6295 (GCVE-0-2016-6295)
Vulnerability from cvelistv5 – Published: 2016-07-25 14:00 – Updated: 2024-08-06 01:22
VLAI
EPSS
VEX
Summary
ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773.
Severity
9.8 (Critical)
CWE
- n/a
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://bugs.php.net/72479 | x_refsource_CONFIRM |
| http://lists.apple.com/archives/security-announce… | vendor-advisoryx_refsource_APPLE |
| https://security.gentoo.org/glsa/201611-22 | vendor-advisoryx_refsource_GENTOO |
| http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=… | x_refsource_CONFIRM |
| http://rhn.redhat.com/errata/RHSA-2016-2750.html | vendor-advisoryx_refsource_REDHAT |
| http://php.net/ChangeLog-5.php | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/92094 | vdb-entryx_refsource_BID |
| http://www.securitytracker.com/id/1036430 | vdb-entryx_refsource_SECTRACK |
| http://www.debian.org/security/2016/dsa-3631 | vendor-advisoryx_refsource_DEBIAN |
| http://php.net/ChangeLog-7.php | x_refsource_CONFIRM |
| http://openwall.com/lists/oss-security/2016/07/24/2 | mailing-listx_refsource_MLIST |
| https://support.apple.com/HT207170 | x_refsource_CONFIRM |
Date Public
2016-07-21 00:00
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"id": "CVE-2016-6295",
"lastModified": "2024-11-21T02:55:50.337",
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"published": "2016-07-25T14:59:08.670",
"references": "[{\"url\": \"http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=cab1c3b3708eead315e033359d07049b23b147a3\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://openwall.com/lists/oss-security/2016/07/24/2\", \"source\": \"cve@mitre.org\", \"tags\": [\"Mailing List\", \"Patch\"]}, {\"url\": \"http://php.net/ChangeLog-5.php\", \"source\": \"cve@mitre.org\", \"tags\": [\"Release Notes\"]}, {\"url\": \"http://php.net/ChangeLog-7.php\", \"source\": \"cve@mitre.org\", \"tags\": [\"Release Notes\"]}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2016-2750.html\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.debian.org/security/2016/dsa-3631\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://www.securityfocus.com/bid/92094\", \"source\": \"cve@mitre.org\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1036430\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://bugs.php.net/72479\", \"source\": \"cve@mitre.org\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/201611-22\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://support.apple.com/HT207170\", \"source\": \"cve@mitre.org\"}, {\"url\": \"http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=cab1c3b3708eead315e033359d07049b23b147a3\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://openwall.com/lists/oss-security/2016/07/24/2\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Patch\"]}, {\"url\": \"http://php.net/ChangeLog-5.php\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\"]}, {\"url\": \"http://php.net/ChangeLog-7.php\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\"]}, {\"url\": \"http://rhn.redhat.com/errata/RHSA-2016-2750.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.debian.org/security/2016/dsa-3631\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"http://www.securityfocus.com/bid/92094\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1036430\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://bugs.php.net/72479\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Issue Tracking\", \"Patch\", \"Third Party Advisory\"]}, {\"url\": \"https://security.gentoo.org/glsa/201611-22\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://support.apple.com/HT207170\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-416\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2016-6295\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2016-07-25T14:59:08.670\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"ext/snmp/snmp.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 improperly interacts with the unserialize implementation and garbage collection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly have unspecified other impact via crafted serialized data, a related issue to CVE-2016-5773.\"},{\"lang\":\"es\",\"value\":\"ext/snmp/snmp.c en PHP en versiones anteriores a 5.5.38, 5.6.x en versiones anteriores a 5.6.24 y 7.x en versiones anteriores a 7.0.9 no interact\u00faa correctamente con la implementaci\u00f3n no serializada y la recolecci\u00f3n de basura, lo que permite a atacantes remotos provocar una denegaci\u00f3n de servicio (uso despu\u00e9s de liberaci\u00f3n y ca\u00edda de aplicaci\u00f3n) o posiblemente tener otro impacto no especificado a trav\u00e9s de datos serializados, un problema relacionado con CVE-2016-5773.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":7.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.4,\"acInsufInfo\":true,\"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:php:php:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"5.5.37\",\"matchCriteriaId\":\"11DF4C58-F13C-40DC-8821-A7C704CA964C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*\",\"matchCriteriaId\":\"5BF4E8FF-A3EC-43E8-A0C1-FD38AFCB77B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*\",\"matchCriteriaId\":\"54ADECFC-3C07-43BC-B296-6C25AC7F1C95\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*\",\"matchCriteriaId\":\"FE192054-2FBB-4388-A52A-422E20DEA2D7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*\",\"matchCriteriaId\":\"F0195D48-3B42-4AC0-B9C5-436E01C63879\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF0E5D67-ABC1-41A5-94E1-7DD3CDB51D81\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*\",\"matchCriteriaId\":\"319E0573-B1AD-40B6-B4BC-8BE67ED3EFDB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:*\",\"matchCriteriaId\":\"1A7C00EB-87B7-4EB7-A4AC-8665D8C78467\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:*\",\"matchCriteriaId\":\"21BFCF10-786A-4D1E-9C37-50A1EC6056F1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:*\",\"matchCriteriaId\":\"95A6D6C8-5F46-4897-A0B0-778631E8CE6A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F1F13E2D-A8F7-4B74-8D03-7905C81672C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AE18933A-5FE6-41C7-B1B6-DA3E762C3FB6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9AE1289F-03A6-4621-B387-5F5ADAC4AE92\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"383697F5-D29E-475A-84F3-46B54A928889\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"786ED182-5D71-4197-9196-12AB5CF05F85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF90980D-74AD-44AA-A7C5-A0B294CCE4F8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"48D6B69C-8F27-4F4C-B953-67A7F9C2FBA5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.8:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B53DC0C3-EA19-4465-B65A-BC7CDB10D8BF\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BEA4DFC1-6C0C-42FB-9F47-E3E1AA9E47E0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D904E21A-4B3B-4D96-850C-0C0315F14E6D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.11:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C7CEF6D7-8966-45E7-BEBB-12055F5898C6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"171C1035-414C-4F3A-90F4-1A8ED26E3346\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.13:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"725BBA4E-B3BA-4AFA-A284-E0CDE3EC8FB4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.14:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F7793408-66A2-4DE7-B5AA-E49E8A2EE043\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.15:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"95840EC0-512D-468D-99B0-17E8CFDD6BE0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:php:php:5.6.16:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E1078D15-8073-4C04-82C2-3C8111E18B6C\"},{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"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-28T06:48:08+00:00",
"cve": "CVE-2016-6295",
"id": "CVE-2016-6295",
"initial_release_date": "2016-06-23T00:00:00+00:00",
"product_status:fixed": "251",
"product_status:known_affected": "80",
"product_status:known_not_affected": "30",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "php: Use after free in SNMP with GC and unserialize()",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-6295.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-08T00:28:05Z",
"cve": "CVE-2016-6295",
"id": "CVE-2016-6295",
"initial_release_date": "2023-02-15T04:59:37Z",
"product_status:known_affected": "660",
"product_status:known_not_affected": "1786",
"product_status:recommended": "1307",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2016-6295",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-6295.json",
"version": "15"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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