IM
IronMonkey Threat Research

CVE-2022-25235 CRITICAL

Published: 2022-02-16 | Last Modified: 2025-05-05 | Status: Modified

Description

xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.

Additional Descriptions (1)

El archivo xmltok_impl.c en Expat (también se conoce como libexpat) versiones anteriores a 2.4.5, carece de determinada comprobación de codificación, como comprueba si un carácter UTF-8 es válido en un determinado contexto

CVSS Metrics

Base Score: 9.8 (CRITICAL)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactHIGH
Integrity ImpactHIGH
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 5.9

Base Score: 7.5 (HIGH)

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access VectorNETWORK
Access ComplexityLOW
AuthenticationNONE
Confidentiality ImpactPARTIAL
Integrity ImpactPARTIAL
Availability ImpactPARTIAL

Source: [email protected]

Type: Primary

Exploitability Score: 10.0

Impact Score: 6.4

Weaknesses

Source Type Description
[email protected] Primary
en CWE-116
134c704f-9b21-4f2e-91b3-4a467353bcc0 Secondary
en CWE-116

Affected Products

Vendor Product Version Update Type
libexpat_project libexpat * <built-in method update of dict object at 0x72a99a344780> Application
debian debian_linux 10.0 <built-in method update of dict object at 0x72a99a344a80> Operating System
debian debian_linux 11.0 <built-in method update of dict object at 0x72a99a347d80> Operating System
fedoraproject fedora 34 <built-in method update of dict object at 0x72a9cc614300> Operating System
fedoraproject fedora 35 <built-in method update of dict object at 0x72a99a344500> Operating System
oracle http_server 12.2.1.3.0 <built-in method update of dict object at 0x72a99a346ec0> Application
oracle http_server 12.2.1.4.0 <built-in method update of dict object at 0x72a99a3454c0> Application
oracle zfs_storage_appliance_kit 8.8 <built-in method update of dict object at 0x72a99a3442c0> Application
siemens sinema_remote_connect_server * <built-in method update of dict object at 0x72a99a347a40> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Yes cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Yes cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:*
Yes cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:*
Yes cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*

References

Notification
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