CVE-2022-23852

expat: Integer overflow in function XML_GetBuffer

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.

Expat (también se conoce como libexpat) versiones anteriores a 2.4.4, presenta un desbordamiento de enteros con signo en la función XML_GetBuffer, para configuraciones con un XML_CONTEXT_BYTES no nulo

expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability, confidentiality and integrity.

*Credits: N/A

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

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-24 CVE Reserved
2022-01-24 CVE Published
2024-08-03 CVE Updated
2024-10-09 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-190: Integer Overflow or Wraparound

CAPEC

References (10)

URL	Tag	Source
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html	Mailing List
https://security.netapp.com/advisory/ntap-20220217-0001	Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Third Party Advisory
https://www.tenable.com/security/tns-2022-05	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/libexpat/libexpat/pull/550	2022-10-29

URL	Date	SRC
https://security.gentoo.org/glsa/202209-24	2022-10-29
https://www.debian.org/security/2022/dsa-5073	2022-10-29
https://access.redhat.com/security/cve/CVE-2022-23852	2022-10-26
https://bugzilla.redhat.com/show_bug.cgi?id=2044613	2022-10-26

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Libexpat Project Search vendor "Libexpat Project"		Libexpat Search vendor "Libexpat Project" for product "Libexpat"				< 2.4.4 Search vendor "Libexpat Project" for product "Libexpat" and version " < 2.4.4"		-		Affected
Netapp Search vendor "Netapp"		Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap"				-		-		Affected
Netapp Search vendor "Netapp"		Oncommand Workflow Automation Search vendor "Netapp" for product "Oncommand Workflow Automation"				-		-		Affected
Tenable Search vendor "Tenable"		Nessus Search vendor "Tenable" for product "Nessus"				< 8.15.3 Search vendor "Tenable" for product "Nessus" and version " < 8.15.3"		-		Affected
Tenable Search vendor "Tenable"		Nessus Search vendor "Tenable" for product "Nessus"				>= 10.0.0 < 10.1.1 Search vendor "Tenable" for product "Nessus" and version " >= 10.0.0 < 10.1.1"		-		Affected
Oracle Search vendor "Oracle"		Communications Metasolv Solution Search vendor "Oracle" for product "Communications Metasolv Solution"				6.3.1 Search vendor "Oracle" for product "Communications Metasolv Solution" and version "6.3.1"		-		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
Siemens Search vendor "Siemens"		Sinema Remote Connect Server Search vendor "Siemens" for product "Sinema Remote Connect Server"				< 3.1 Search vendor "Siemens" for product "Sinema Remote Connect Server" and version " < 3.1"		-		Affected