// For flags

CVE-2020-7068

Use of freed hash key in the phar_parse_zipfile function

Severity Score

3.6
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP versions 7.2.x below 7.2.33, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.

En PHP versiones 7.2.x por debajo de 7.2.33, 7.3.x por debajo de 7.3.21 y 7.4.x por debajo de 7.4.9, mientras se procesan archivos PHAR con la extensión phar, la función phar_parse_zipfile podría ser engañada para que acceda a la memoria liberada, lo que podría conllevar a un bloqueo o una divulgación de información

It was discovered that PHP incorrectly handled certain PHAR files. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. It was discovered that PHP incorrectly handled parsing URLs with passwords. A remote attacker could possibly use this issue to cause PHP to mis-parse the URL and produce wrong data. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 20.10. Various other issues were also addressed.

*Credits: grigoritchy at gmail dot com
CVSS Scores
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low
Attack Vector
Local
Attack Complexity
Medium
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
  • 2020-09-09 CVE Published
  • 2024-09-17 CVE Updated
  • 2024-09-17 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
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 < 7.2.33
Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.33"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.3.0 < 7.3.21
Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.21"
-
Affected
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 >= 7.4.0 < 7.4.9
Search vendor "Php" for product "Php" and version " >= 7.4.0 < 7.4.9"
-
Affected
Debian
Search vendor "Debian"
 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
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