CVE-2019-20388

libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

xmlSchemaPreRun in xmlschemas.c in libxml2 2.9.10 allows an xmlSchemaValidateStream memory leak.

La función xmlSchemaPreRun en el archivo xmlschemas.c en libxml2 versión 2.9.10, permite una pérdida de memoria de la función xmlSchemaValidateStream.

A memory leak was found in the xmlSchemaValidateStream function of libxml2. Applications that use this library may be vulnerable to memory not being freed leading to a denial of service. System availability is the highest threat from this vulnerability.

Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 3 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 2 and includes bug fixes and enhancements. Issues addressed include buffer over-read, denial of service, and memory leak vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-21 CVE Reserved
2020-01-21 CVE Published
2024-08-05 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (14)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2020/09/msg00009.html	Mailing List
https://security.netapp.com/advisory/ntap-20200702-0005	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://gitlab.gnome.org/GNOME/libxml2/merge_requests/68	2023-11-09
https://www.oracle.com/security-alerts/cpuapr2022.html	2023-11-09
https://www.oracle.com/security-alerts/cpujul2020.html	2023-11-09
https://www.oracle.com/security-alerts/cpuoct2021.html	2023-11-09

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00047.html	2023-11-09
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/545SPOI3ZPPNPX4TFRIVE4JVRTJRKULL	2023-11-09
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5R55ZR52RMBX24TQTWHCIWKJVRV6YAWI	2023-11-09
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JDPF3AAVKUAKDYFMFKSIQSVVS3EEFPQH	2023-11-09
https://security.gentoo.org/glsa/202010-04	2023-11-09
https://access.redhat.com/security/cve/CVE-2019-20388	2021-03-22
https://bugzilla.redhat.com/show_bug.cgi?id=1799734	2021-03-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netapp Search vendor "Netapp"	H300s Firmware Search vendor "Netapp" for product "H300s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H300s Search vendor "Netapp" for product "H300s"	-	-	Safe
Netapp Search vendor "Netapp"	H500s Firmware Search vendor "Netapp" for product "H500s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H500s Search vendor "Netapp" for product "H500s"	-	-	Safe
Netapp Search vendor "Netapp"	H700s Firmware Search vendor "Netapp" for product "H700s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H700s Search vendor "Netapp" for product "H700s"	-	-	Safe
Netapp Search vendor "Netapp"	H300e Firmware Search vendor "Netapp" for product "H300e Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H300e Search vendor "Netapp" for product "H300e"	-	-	Safe
Netapp Search vendor "Netapp"	H500e Firmware Search vendor "Netapp" for product "H500e Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H500e Search vendor "Netapp" for product "H500e"	-	-	Safe
Netapp Search vendor "Netapp"	H700e Firmware Search vendor "Netapp" for product "H700e Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H700e Search vendor "Netapp" for product "H700e"	-	-	Safe
Netapp Search vendor "Netapp"	H410s Firmware Search vendor "Netapp" for product "H410s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H410s Search vendor "Netapp" for product "H410s"	-	-	Safe
Xmlsoft Search vendor "Xmlsoft"		Libxml2 Search vendor "Xmlsoft" for product "Libxml2"				2.9.10 Search vendor "Xmlsoft" for product "Libxml2" and version "2.9.10"		-		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
Netapp Search vendor "Netapp"		Cloud Backup Search vendor "Netapp" for product "Cloud Backup"				-		-		Affected
Netapp Search vendor "Netapp"		Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap"				-		-		Affected
Netapp Search vendor "Netapp"		Ontap Select Deploy Administration Utility Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility"				-		-		Affected
Netapp Search vendor "Netapp"		Plug-in For Symantec Netbackup Search vendor "Netapp" for product "Plug-in For Symantec Netbackup"				-		-		Affected
Netapp Search vendor "Netapp"		Smi-s Provider Search vendor "Netapp" for product "Smi-s Provider"				-		-		Affected
Netapp Search vendor "Netapp"		Snapdrive Search vendor "Netapp" for product "Snapdrive"				-		windows		Affected
Netapp Search vendor "Netapp"		Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage"				-		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Network Function Cloud Native Environment Search vendor "Oracle" for product "Communications Cloud Native Core Network Function Cloud Native Environment"				1.10.0 Search vendor "Oracle" for product "Communications Cloud Native Core Network Function Cloud Native Environment" and version "1.10.0"		-		Affected
Oracle Search vendor "Oracle"		Enterprise Manager Base Platform Search vendor "Oracle" for product "Enterprise Manager Base Platform"				13.4.0.0 Search vendor "Oracle" for product "Enterprise Manager Base Platform" and version "13.4.0.0"		-		Affected
Oracle Search vendor "Oracle"		Enterprise Manager Base Platform Search vendor "Oracle" for product "Enterprise Manager Base Platform"				13.5.0.0 Search vendor "Oracle" for product "Enterprise Manager Base Platform" and version "13.5.0.0"		-		Affected
Oracle Search vendor "Oracle"		Enterprise Manager Ops Center Search vendor "Oracle" for product "Enterprise Manager Ops Center"				12.4.0.0 Search vendor "Oracle" for product "Enterprise Manager Ops Center" and version "12.4.0.0"		-		Affected
Oracle Search vendor "Oracle"		Mysql Workbench Search vendor "Oracle" for product "Mysql Workbench"				<= 8.0.26 Search vendor "Oracle" for product "Mysql Workbench" and version " <= 8.0.26"		-		Affected
Oracle Search vendor "Oracle"		Peoplesoft Enterprise Peopletools Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools"				8.58 Search vendor "Oracle" for product "Peoplesoft Enterprise Peopletools" and version "8.58"		-		Affected
Oracle Search vendor "Oracle"		Real User Experience Insight Search vendor "Oracle" for product "Real User Experience Insight"				13.3.1.0 Search vendor "Oracle" for product "Real User Experience Insight" and version "13.3.1.0"		-		Affected
Oracle Search vendor "Oracle"		Real User Experience Insight Search vendor "Oracle" for product "Real User Experience Insight"				13.4.1.0 Search vendor "Oracle" for product "Real User Experience Insight" and version "13.4.1.0"		-		Affected
Oracle Search vendor "Oracle"		Real User Experience Insight Search vendor "Oracle" for product "Real User Experience Insight"				13.5.1.0 Search vendor "Oracle" for product "Real User Experience Insight" and version "13.5.1.0"		-		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
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
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected