// For flags

CVE-2020-7060

global buffer-overflow in mbfl_filt_conv_big5_wchar

Severity Score

9.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When using certain mbstring functions to convert multibyte encodings, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause function mbfl_filt_conv_big5_wchar to read past the allocated buffer. This may lead to information disclosure or crash.

Cuando se usan determinadas funciones de mbstring para convertir codificaciones multibyte, en PHP versiones 7.2.x por debajo de 7.2.27, versiones 7.3.x por debajo de 7.3.14 y versiones 7.4.x por debajo de 7.4.2, es posible suministrar datos que causarán que la función mbfl_filt_conv_big5_wchar lea más allá del buffer asignado. Esto puede conllevar a una divulgación de información o bloqueo.

*Credits: Reported by reza at iseclab dot org
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-15 CVE Reserved
  • 2020-02-10 CVE Published
  • 2024-05-16 EPSS Updated
  • 2024-09-17 CVE Updated
  • 2024-09-17 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • 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"
>= 7.2.0 < 7.2.27
Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.27"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 7.3.0 < 7.3.14
Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.14"
-
Affected
Php
Search vendor "Php"
Php
Search vendor "Php" for product "Php"
>= 7.4.0 < 7.4.2
Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.2"
-
Affected
Tenable
Search vendor "Tenable"
Tenable.sc
Search vendor "Tenable" for product "Tenable.sc"
< 5.19.0
Search vendor "Tenable" for product "Tenable.sc" and version " < 5.19.0"
-
Affected
Oracle
Search vendor "Oracle"
Communications Diameter Signaling Router
Search vendor "Oracle" for product "Communications Diameter Signaling Router"
>= 8.0 <= 8.4
Search vendor "Oracle" for product "Communications Diameter Signaling Router" and version " >= 8.0 <= 8.4"
-
Affected
Opensuse
Search vendor "Opensuse"
Leap
Search vendor "Opensuse" for product "Leap"
15.1
Search vendor "Opensuse" for product "Leap" and version "15.1"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
8.0
Search vendor "Debian" for product "Debian Linux" and version "8.0"
-
Affected