CVE-2017-12933

CVSS V2 High 7.5 CVSS V3 Critical 9.8
Description
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.
Overview
  • CVE ID
  • CVE-2017-12933
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2017-08-18T03:29:00
  • Last Modified Date
  • 2019-10-03T00:03:26
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:php:php:*:*:*:*:*:*:*:* 1 OR 5.6.30
cpe:2.3:a:php:php:7.0.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.8:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.11:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.12:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.13:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.14:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.15:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.16:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.18:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.19:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.0.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:php:php:7.1.6:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://bugs.php.net/bug.php?id=74111 Vendor Advisory
http://php.net/ChangeLog-7.php Release Notes Vendor Advisory
http://php.net/ChangeLog-5.php Release Notes Vendor Advisory
http://www.securityfocus.com/bid/99490 Third Party Advisory VDB Entry
https://www.debian.org/security/2018/dsa-4081
https://www.debian.org/security/2018/dsa-4080
https://usn.ubuntu.com/3566-1/
https://access.redhat.com/errata/RHSA-2018:1296
https://usn.ubuntu.com/3566-2/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2017-12933
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12933
History
Created Old Value New Value Data Type Notes
2022-05-10 17:21:23 Added to TrackCVE
2022-12-02 20:01:47 2017-08-18T03:29Z 2017-08-18T03:29:00 CVE Published Date updated
2022-12-02 20:01:47 2019-10-03T00:03:26 CVE Modified Date updated
2022-12-02 20:01:47 Modified Vulnerability Status updated