// For flags

CVE-2015-4644

php: NULL pointer dereference in php_pgsql_meta_data()

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The php_pgsql_meta_data function in pgsql.c in the PostgreSQL (aka pgsql) extension in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 does not validate token extraction for table names, which might allow remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted name. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1352.

La función php_pgsql_meta_data en pgsql.c en la extensión PostgreSQL (también conocida como pgsql) en PHP en versiones anteriores a 5.4.42, 5.5.x en versiones anteriores a 5.5.26 y 5.6 en versiones anteriores a 5.6.10 no tiene una extración de contador válido para nombres de tabla, lo que podría permitir a atacantes remotos provocar una denegación de servicio (referencia a puntero NULL y caída de aplicación) a través de un nombre manipulado. NOTA: esta vulnerabilidad existe debido a una solución incompleta de CVE-2015-1352.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-06-18 CVE Reserved
  • 2015-07-07 CVE Published
  • 2023-08-17 EPSS Updated
  • 2024-08-06 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
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Enterprise Linux
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6.0
Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"
-
Affected
Redhat
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Enterprise Linux
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7.0
Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"
-
Affected
Php
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Php
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<= 5.4.41
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Affected
Php
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Php
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5.5.0
Search vendor "Php" for product "Php" and version "5.5.0"
-
Affected
Php
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Php
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5.5.1
Search vendor "Php" for product "Php" and version "5.5.1"
-
Affected
Php
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Php
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5.5.2
Search vendor "Php" for product "Php" and version "5.5.2"
-
Affected
Php
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Php
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5.5.3
Search vendor "Php" for product "Php" and version "5.5.3"
-
Affected
Php
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Php
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5.5.4
Search vendor "Php" for product "Php" and version "5.5.4"
-
Affected
Php
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Php
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5.5.5
Search vendor "Php" for product "Php" and version "5.5.5"
-
Affected
Php
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Php
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5.5.6
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Affected
Php
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Php
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5.5.7
Search vendor "Php" for product "Php" and version "5.5.7"
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Affected
Php
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Php
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5.5.8
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Affected
Php
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Php
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5.5.9
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Affected
Php
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Php
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5.5.10
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Affected
Php
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Php
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5.5.11
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Affected
Php
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Php
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5.5.12
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Affected
Php
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Php
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5.5.13
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Affected
Php
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Php
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5.5.14
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Affected
Php
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Php
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5.5.15
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Affected
Php
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Php
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5.5.16
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Affected
Php
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Php
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5.5.17
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Affected
Php
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Php
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5.5.18
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Affected
Php
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Php
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5.5.19
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Affected
Php
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Php
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5.5.20
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Affected
Php
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Php
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5.5.21
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Affected
Php
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Php
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5.5.22
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Affected
Php
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Php
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5.5.23
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Affected
Php
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Php
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5.5.24
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Affected
Php
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Php
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5.5.25
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Affected
Php
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Php
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5.6.0
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Affected
Php
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Php
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5.6.1
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Affected
Php
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Php
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5.6.2
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Affected
Php
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Php
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5.6.3
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Affected
Php
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Php
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5.6.4
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Affected
Php
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Php
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5.6.5
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Affected
Php
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Php
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5.6.6
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Affected
Php
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Php
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5.6.7
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Affected
Php
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Php
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5.6.8
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Affected
Php
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Php
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5.6.9
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Affected