// For flags

CVE-2018-20783

php: Buffer over-read in PHAR reading functions

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP before 5.6.39, 7.x before 7.0.33, 7.1.x before 7.1.25, and 7.2.x before 7.2.13, a buffer over-read in PHAR reading functions may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse a .phar file. This is related to phar_parse_pharfile in ext/phar/phar.c.

En PHP, en versiones anteriores a la 5.6.39, en las versiones 7.x anteriores a la 7.1.25 y en las 7.2.x anteriores a la 7.2.13, una sobrelectura de búfer en las funciones de lectura PHAR podría permitir a un atacante leer la memoria, ya sea asignada o no, posterior a los datos actuales durante el análisis de un archivo .phar. Esto está relacionado con phar_parse_pharfile en ext/phar/phar.c.

USN-3566-1 fixed several vulnerabilities in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. It was discovered that PHP incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. It was discovered that PHP incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information or possibly cause a crash, resulting in a denial of service. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-02-21 CVE Reserved
  • 2019-02-21 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2024-12-17 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-125: Out-of-bounds Read
CAPEC
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"
 < 5.6.39
Search vendor "Php" for product "Php" and version " < 5.6.39"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.0.0 < 7.0.33
Search vendor "Php" for product "Php" and version " >= 7.0.0 < 7.0.33"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.1.0 < 7.1.25
Search vendor "Php" for product "Php" and version " >= 7.1.0 < 7.1.25"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.2.0 < 7.2.13
Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.13"
-
Affected
Opensuse
Search vendor "Opensuse"
 Leap
Search vendor "Opensuse" for product "Leap"
 42.3
Search vendor "Opensuse" for product "Leap" and version "42.3"
-
Affected