CVE-2021-3518

libxml2: Use-after-free in xmlXIncludeDoProcess() in xinclude.c

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

There's a flaw in libxml2 in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.

Se presenta un fallo en libxml2 en versiones anteriores a 2.9.11. Un atacante que pueda enviar un archivo diseñado para que sea procesado por una aplicación vinculada con libxml2 podría desencadenar un uso de la memoria previamente liberada. El mayor impacto de este fallo es a la confidencialidad, integridad y disponibilidad

There's a flaw in libxml2. An attacker who is able to submit a crafted file to be processed by an application linked with libxml2 could trigger a use-after-free. The greatest impact from this flaw is to confidentiality, integrity, and availability.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-27 CVE Reserved
2021-05-18 CVE Published
2024-02-01 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (20)

URL	Tag	Source
http://seclists.org/fulldisclosure/2021/Jul/54	Mailing List
http://seclists.org/fulldisclosure/2021/Jul/55	Mailing List
http://seclists.org/fulldisclosure/2021/Jul/58	Mailing List
http://seclists.org/fulldisclosure/2021/Jul/59	Mailing List
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html	Mailing List
https://security.netapp.com/advisory/ntap-20210625-0002	Third Party Advisory
https://support.apple.com/kb/HT212601	Third Party Advisory
https://support.apple.com/kb/HT212602	Third Party Advisory
https://support.apple.com/kb/HT212604	Third Party Advisory
https://support.apple.com/kb/HT212605	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	Not Applicable

URL	Date	SRC

URL	Date	SRC
https://bugzilla.redhat.com/show_bug.cgi?id=1954242	2022-04-20
https://www.oracle.com/security-alerts/cpuapr2022.html	2023-11-07
https://www.oracle.com/security-alerts/cpuoct2021.html	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZOMV5J4PMZAORVT64BKLV6YIZAFDGX6	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QVM4UJ3376I6ZVOYMHBNX4GY3NIV52WV	2023-11-07
https://security.gentoo.org/glsa/202107-05	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-3518	2022-04-20

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netapp Search vendor "Netapp"	Hci H410c Firmware Search vendor "Netapp" for product "Hci H410c Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	Hci H410c Search vendor "Netapp" for product "Hci H410c"	-	-	Safe
Xmlsoft Search vendor "Xmlsoft"		Libxml2 Search vendor "Xmlsoft" for product "Libxml2"				< 2.9.11 Search vendor "Xmlsoft" for product "Libxml2" and version " < 2.9.11"		-		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
Redhat Search vendor "Redhat"		Jboss Core Services Search vendor "Redhat" for product "Jboss Core Services"				-		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		vmware_vsphere		Affected
Netapp Search vendor "Netapp"		Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap"				-		-		Affected
Netapp Search vendor "Netapp"		Clustered Data Ontap Antivirus Connector Search vendor "Netapp" for product "Clustered Data Ontap Antivirus Connector"				-		-		Affected
Netapp Search vendor "Netapp"		Manageability Software Development Kit Search vendor "Netapp" for product "Manageability Software Development Kit"				-		-		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"		Snapdrive Search vendor "Netapp" for product "Snapdrive"				-		windows		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"				13.4.1.0 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