CVE-2019-9023

php: Heap-based buffer over-read in mbstring regular expression functions

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A number of heap-based buffer over-read instances are present in mbstring regular expression functions when supplied with invalid multibyte data. These occur in ext/mbstring/oniguruma/regcomp.c, ext/mbstring/oniguruma/regexec.c, ext/mbstring/oniguruma/regparse.c, ext/mbstring/oniguruma/enc/unicode.c, and ext/mbstring/oniguruma/src/utf32_be.c when a multibyte regular expression pattern contains invalid multibyte sequences.

Se ha descubierto un problema en PHP en versiones anteriores a la 5.6.40, versiones 7.x anteriores a la 7.1.26, versiones 7.2.x anteriores a la 7.2.14 y versiones 7.3.x anteriores a la 7.3.1. Existen instancias de sobrelectura de búfer basada en memoria dinámica (heap) en las funciones de expresión regular mbstring cuando se les proporcionan datos multibyte inválidos. Estas ocurren en ext/mbstring/oniguruma/regcomp.c, ext/mbstring/oniguruma/regexec.c, ext/mbstring/oniguruma/regparse.c, ext/mbstring/oniguruma/enc/unicode.c y ext/mbstring/oniguruma/src/utf32_be.c cuando un patrón de expresión regular multibyte contiene secuencias multibyte inválidas.

*Credits: N/A

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

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

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

2019-02-22 CVE Reserved
2019-02-22 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-08-24 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-122: Heap-based Buffer Overflow
CWE-125: Out-of-bounds Read

CAPEC

References (21)

URL	Tag	Source
http://www.securityfocus.com/bid/107156	Third Party Advisory
https://support.f5.com/csp/article/K06372014	Third Party Advisory

URL	Date	SRC
https://bugs.php.net/bug.php?id=77370	2024-08-04
https://bugs.php.net/bug.php?id=77371	2024-08-04
https://bugs.php.net/bug.php?id=77381	2024-08-04
https://bugs.php.net/bug.php?id=77382	2024-08-04
https://bugs.php.net/bug.php?id=77385	2024-08-04
https://bugs.php.net/bug.php?id=77394	2024-08-04
https://bugs.php.net/bug.php?id=77418	2024-08-04

URL	Date	SRC
https://security.netapp.com/advisory/ntap-20190321-0001	2019-06-18

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00083.html	2019-06-18
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00104.html	2019-06-18
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00041.html	2019-06-18
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00044.html	2019-06-18
https://access.redhat.com/errata/RHSA-2019:2519	2019-06-18
https://access.redhat.com/errata/RHSA-2019:3299	2019-06-18
https://usn.ubuntu.com/3902-1	2019-06-18
https://usn.ubuntu.com/3902-2	2019-06-18
https://www.debian.org/security/2019/dsa-4398	2019-06-18
https://access.redhat.com/security/cve/CVE-2019-9023	2020-04-28
https://bugzilla.redhat.com/show_bug.cgi?id=1685398	2020-04-28

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"				< 5.6.40 Search vendor "Php" for product "Php" and version " < 5.6.40"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 7.0.0 < 7.1.26 Search vendor "Php" for product "Php" and version " >= 7.0.0 < 7.1.26"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 7.2.0 < 7.2.14 Search vendor "Php" for product "Php" and version " >= 7.2.0 < 7.2.14"		-		Affected
Php Search vendor "Php"		Php Search vendor "Php" for product "Php"				>= 7.3.0 < 7.3.1 Search vendor "Php" for product "Php" and version " >= 7.3.0 < 7.3.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Netapp Search vendor "Netapp"		Storage Automation Store Search vendor "Netapp" for product "Storage Automation Store"				-		-		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