CVE-2017-12933

php: buffer over-read in finish_nested_data function

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función 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 explotación de este problema puede tener un impacto sin especificar en la integridad de PHP.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-08-17 CVE Reserved
2017-08-18 CVE Published
2023-05-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (11)

URL	Tag	Source
http://www.securityfocus.com/bid/99490	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://php.net/ChangeLog-5.php	2019-10-03
http://php.net/ChangeLog-7.php	2019-10-03
https://access.redhat.com/errata/RHSA-2018:1296	2019-10-03
https://bugs.php.net/bug.php?id=74111	2019-10-03
https://usn.ubuntu.com/3566-1	2019-10-03
https://usn.ubuntu.com/3566-2	2019-10-03
https://www.debian.org/security/2018/dsa-4080	2019-10-03
https://www.debian.org/security/2018/dsa-4081	2019-10-03
https://access.redhat.com/security/cve/CVE-2017-12933	2018-05-03
https://bugzilla.redhat.com/show_bug.cgi?id=1484838	2018-05-03

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				<= 5.6.30 Search vendor "Php" for product "Php" and version " <= 5.6.30"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.0 Search vendor "Php" for product "Php" and version "7.0.0"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.1 Search vendor "Php" for product "Php" and version "7.0.1"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.2 Search vendor "Php" for product "Php" and version "7.0.2"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.3 Search vendor "Php" for product "Php" and version "7.0.3"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.4 Search vendor "Php" for product "Php" and version "7.0.4"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.5 Search vendor "Php" for product "Php" and version "7.0.5"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.6 Search vendor "Php" for product "Php" and version "7.0.6"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.7 Search vendor "Php" for product "Php" and version "7.0.7"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.8 Search vendor "Php" for product "Php" and version "7.0.8"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.9 Search vendor "Php" for product "Php" and version "7.0.9"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.10 Search vendor "Php" for product "Php" and version "7.0.10"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.11 Search vendor "Php" for product "Php" and version "7.0.11"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.12 Search vendor "Php" for product "Php" and version "7.0.12"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.13 Search vendor "Php" for product "Php" and version "7.0.13"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.14 Search vendor "Php" for product "Php" and version "7.0.14"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.15 Search vendor "Php" for product "Php" and version "7.0.15"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.16 Search vendor "Php" for product "Php" and version "7.0.16"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.17 Search vendor "Php" for product "Php" and version "7.0.17"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.18 Search vendor "Php" for product "Php" and version "7.0.18"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.19 Search vendor "Php" for product "Php" and version "7.0.19"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.0.20 Search vendor "Php" for product "Php" and version "7.0.20"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.0 Search vendor "Php" for product "Php" and version "7.1.0"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.1 Search vendor "Php" for product "Php" and version "7.1.1"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.2 Search vendor "Php" for product "Php" and version "7.1.2"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.3 Search vendor "Php" for product "Php" and version "7.1.3"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.4 Search vendor "Php" for product "Php" and version "7.1.4"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.5 Search vendor "Php" for product "Php" and version "7.1.5"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				7.1.6 Search vendor "Php" for product "Php" and version "7.1.6"		-		Affected