IM
IronMonkey Threat Research

CVE-2021-21829 CRITICAL

Published: 2021-08-13 | Last Modified: 2024-11-21 | Status: Modified

Description

A heap-based buffer overflow vulnerability exists in the XML Decompression EnumerationUncompressor::UncompressItem functionality of AT&T Labs’ Xmill 0.7. A specially crafted XMI file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.

Additional Descriptions (1)

Se presenta una vulnerabilidad de desbordamiento de búfer en la región heap de la memoria en la funcionalidad XML Decompression EnumerationUncompressor::UncompressItem de Xmill versión 0.7 de AT&T Labs. Un archivo XMI especialmente diseñado puede conllevar a una ejecución de código remota. Un atacante puede proporcionar un archivo malicioso para desencadenar esta vulnerabilidad.

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] Secondary
en CWE-122
[email protected] Primary
en CWE-787

Affected Products

Vendor Product Version Update Type
att xmill 0.7 <built-in method update of dict object at 0x7e60bafada40> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:att:xmill:0.7:*:*:*:*:*:*:*

References

Notification
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