CVE-2017-12933

The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://php.net/ChangeLog-5.php	Release Notes Vendor Advisory
http://php.net/ChangeLog-7.php	Release Notes Vendor Advisory
http://www.securityfocus.com/bid/99490	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=74111	Vendor Advisory
https://usn.ubuntu.com/3566-1/
https://usn.ubuntu.com/3566-2/
https://www.debian.org/security/2018/dsa-4080
https://www.debian.org/security/2018/dsa-4081
http://php.net/ChangeLog-5.php	Release Notes Vendor Advisory
http://php.net/ChangeLog-7.php	Release Notes Vendor Advisory
http://www.securityfocus.com/bid/99490	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2018:1296
https://bugs.php.net/bug.php?id=74111	Vendor Advisory
https://usn.ubuntu.com/3566-1/
https://usn.ubuntu.com/3566-2/
https://www.debian.org/security/2018/dsa-4080
https://www.debian.org/security/2018/dsa-4081

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:php:php::::::::
	cpe:2.3:a:php:php:7.0.0:::::::*
	cpe:2.3:a:php:php:7.0.1:::::::*
	cpe:2.3:a:php:php:7.0.2:::::::*
	cpe:2.3:a:php:php:7.0.3:::::::*
	cpe:2.3:a:php:php:7.0.4:::::::*
	cpe:2.3:a:php:php:7.0.5:::::::*
	cpe:2.3:a:php:php:7.0.6:::::::*
	cpe:2.3:a:php:php:7.0.7:::::::*
	cpe:2.3:a:php:php:7.0.8:::::::*
	cpe:2.3:a:php:php:7.0.9:::::::*
	cpe:2.3:a:php:php:7.0.10:::::::*
	cpe:2.3:a:php:php:7.0.11:::::::*
	cpe:2.3:a:php:php:7.0.12:::::::*
	cpe:2.3:a:php:php:7.0.13:::::::*
	cpe:2.3:a:php:php:7.0.14:::::::*
	cpe:2.3:a:php:php:7.0.15:::::::*
	cpe:2.3:a:php:php:7.0.16:::::::*
	cpe:2.3:a:php:php:7.0.17:::::::*
	cpe:2.3:a:php:php:7.0.18:::::::*
	cpe:2.3:a:php:php:7.0.19:::::::*
	cpe:2.3:a:php:php:7.0.20:::::::*
	cpe:2.3:a:php:php:7.1.0:::::::*
	cpe:2.3:a:php:php:7.1.1:::::::*
	cpe:2.3:a:php:php:7.1.2:::::::*
	cpe:2.3:a:php:php:7.1.3:::::::*
	cpe:2.3:a:php:php:7.1.4:::::::*
	cpe:2.3:a:php:php:7.1.5:::::::*
	cpe:2.3:a:php:php:7.1.6:::::::*

History

21 Nov 2024, 03:10

Type	Values Removed	Values Added
References	~~() http://php.net/ChangeLog-5.php - Release Notes, Vendor Advisory~~	() http://php.net/ChangeLog-5.php - Release Notes, Vendor Advisory
References	~~() http://php.net/ChangeLog-7.php - Release Notes, Vendor Advisory~~	() http://php.net/ChangeLog-7.php - Release Notes, Vendor Advisory
References	~~() http://www.securityfocus.com/bid/99490 - Third Party Advisory, VDB Entry~~	() http://www.securityfocus.com/bid/99490 - Third Party Advisory, VDB Entry
References	~~() https://access.redhat.com/errata/RHSA-2018:1296 -~~	() https://access.redhat.com/errata/RHSA-2018:1296 -
References	~~() https://bugs.php.net/bug.php?id=74111 - Vendor Advisory~~	() https://bugs.php.net/bug.php?id=74111 - Vendor Advisory
References	~~() https://usn.ubuntu.com/3566-1/ -~~	() https://usn.ubuntu.com/3566-1/ -
References	~~() https://usn.ubuntu.com/3566-2/ -~~	() https://usn.ubuntu.com/3566-2/ -
References	~~() https://www.debian.org/security/2018/dsa-4080 -~~	() https://www.debian.org/security/2018/dsa-4080 -
References	~~() https://www.debian.org/security/2018/dsa-4081 -~~	() https://www.debian.org/security/2018/dsa-4081 -

Information

Published : 2017-08-18 03:29

Updated : 2025-04-20 01:37

NVD link : CVE-2017-12933

Mitre link : CVE-2017-12933

CVE.ORG link : CVE-2017-12933

JSON object : View

Products Affected

php

CWE

CWE-125

Out-of-bounds Read

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Exploitation of this issue can have an unspecified impact on the integrity of PHP."}, {"lang": "es", "value": "La funci\u00f3n finish_nested_data en ext/standard/var_unserializer.re en PHP en versiones anteriores a la 5.6.31, versiones 7.0.x anteriores a la 7.0.21 y versiones 7.1.x anteriores a la 7.1.7 es propenso a sufrir un buffer over-read al deserializar datos que no son de confianza. La explotaci\u00f3n de este problema puede tener un impacto sin especificar en la integridad de PHP."}], "lastModified": "2025-04-20T01:37:25.860", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "399EA21A-9B46-4F4F-9A33-4DC557B11743", "versionEndIncluding": "5.6.30"}, {"criteria": "cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DB6890AF-8A0A-46EE-AAD5-CF9AAE14A321"}, {"criteria": "cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6B90B947-7B54-47F3-9637-2F4AC44079EE"}, {"criteria": "cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "35848414-BD5D-4164-84DC-61ABBB1C4152"}, {"criteria": "cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2B1F8402-8551-4F66-A9A7-81D472AB058E"}, {"criteria": "cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A773E8E-48CD-4D35-A0FD-629BD9334486"}, {"criteria": "cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FC492340-79AF-4676-A161-079A97EC6F0C"}, {"criteria": "cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F1C2D8FE-C380-4B43-B634-A3DBA4700A71"}, {"criteria": "cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EB58393-0C10-413C-8D95-6BAA8BC19A1B"}, {"criteria": "cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "751F51CA-9D88-4971-A6EC-8C0B72E8E22B"}, {"criteria": "cpe:2.3:a:php:php:7.0.9:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "37B74118-8FC2-44CB-9673-A83DF777B2E6"}, {"criteria": "cpe:2.3:a:php:php:7.0.10:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4D56A200-1477-40DA-9444-CFC946157C69"}, {"criteria": "cpe:2.3:a:php:php:7.0.11:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD0D1CCC-A857-4C15-899E-08F9255CEE34"}, {"criteria": "cpe:2.3:a:php:php:7.0.12:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6745CC43-2836-4CD8-848F-EEA08AE9D5AC"}, {"criteria": "cpe:2.3:a:php:php:7.0.13:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7BEB6696-14F9-4D9B-9974-B682FFBB828E"}, {"criteria": "cpe:2.3:a:php:php:7.0.14:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "04146390-021D-4147-9830-9EAA90D120A7"}, {"criteria": "cpe:2.3:a:php:php:7.0.15:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5B124547-DC1D-4A92-B8AB-8A1900063786"}, {"criteria": "cpe:2.3:a:php:php:7.0.16:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F45B2127-CF3D-4D59-9042-AE6DF2908319"}, {"criteria": "cpe:2.3:a:php:php:7.0.17:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "29A450E3-931F-4487-A76D-80A38210297A"}, {"criteria": "cpe:2.3:a:php:php:7.0.18:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C099A0C4-883D-42ED-8359-FFD3ADD692A3"}, {"criteria": "cpe:2.3:a:php:php:7.0.19:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ABD07432-5A23-491E-892E-42F0F58307D0"}, {"criteria": "cpe:2.3:a:php:php:7.0.20:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "19627ECC-9342-4917-8FCC-7757339E3242"}, {"criteria": "cpe:2.3:a:php:php:7.1.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0C68AA43-ED90-4B98-A5F8-4E210C2CC7CD"}, {"criteria": "cpe:2.3:a:php:php:7.1.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2466D297-9442-40B0-A1A7-F9D166396CF8"}, {"criteria": "cpe:2.3:a:php:php:7.1.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EADBF7EE-18DC-49F9-BF2F-A09BBAE76F45"}, {"criteria": "cpe:2.3:a:php:php:7.1.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1726E9B6-A7FA-402B-A911-0CE81C623087"}, {"criteria": "cpe:2.3:a:php:php:7.1.4:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C3670FF7-2CA3-41A4-92FE-0123497E4E87"}, {"criteria": "cpe:2.3:a:php:php:7.1.5:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1C22CE03-DFE5-4CD3-B229-10B219A55434"}, {"criteria": "cpe:2.3:a:php:php:7.1.6:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C258AF27-84DF-4FC3-A651-1349BB567FB9"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}

9.8 /10