// For flags

CVE-2019-11049

mail() may release string with refcount==1 twice

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In PHP versions 7.3.x below 7.3.13 and 7.4.0 on Windows, when supplying custom headers to mail() function, due to mistake introduced in commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, if the header is supplied in lowercase, this can result in double-freeing certain memory locations.

En PHP versiones 7.3.x por debajo de 7.3.13 y 7.4.0 en Windows, al suministrar encabezados personalizados para la función mail(), debido a un error introducido en el commit 78f4b4a2dcf92ddbccea1bb95f8390a18ac3342e, si el encabezado se suministra en minúsculas, esto puede resultar en una doble liberación de ciertas ubicaciones de memoria.

Multiple security issues were found in PHP, a widely-used open source general purpose scripting language which could result in information disclosure, denial of service or incorrect validation of path names.

*Credits: Submitted by Christoph M. Becker
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
Low
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
  • 2019-04-09 CVE Reserved
  • 2019-12-23 CVE Published
  • 2024-09-16 CVE Updated
  • 2025-04-03 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-415: Double 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"
 >= 7.3.0 <= 7.3.13
Search vendor "Php" for product "Php" and version " >= 7.3.0 <= 7.3.13"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Php
Search vendor "Php"
 Php
Search vendor "Php" for product "Php"
 7.4.0
Search vendor "Php" for product "Php" and version "7.4.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows
Search vendor "Microsoft" for product "Windows"
--
Safe
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 30
Search vendor "Fedoraproject" for product "Fedora" and version "30"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
 Fedora
Search vendor "Fedoraproject" for product "Fedora"
 31
Search vendor "Fedoraproject" for product "Fedora" and version "31"
-
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"
 Securitycenter
Search vendor "Tenable" for product "Securitycenter"
 < 5.19.0
Search vendor "Tenable" for product "Securitycenter" and version " < 5.19.0"
-
Affected