CVE-2012-1458

Severity Score

6.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Microsoft CHM file parser in ClamAV 0.96.4 and Sophos Anti-Virus 4.61.0 allows remote attackers to bypass malware detection via a crafted reset interval in the LZXC header of a CHM file. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different CHM parser implementations.

El analizador de archivos CHM de Microsoft en ClamAV v0.96.4 y Sophos Anti-Virus v4.61.0 permite a atacantes remotos evitar la detección de malware a través de un intervalo de restablecimiento manipulado en la cabecera LZXC de un archivo CHM. NOTA: esto más adelante se puede dividir en varios CVEs si la información adicional que se publica muestra que el error se produjo de forma independiente en diferentes implementaciones del analizador de CHM.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2012-02-29 CVE Reserved
2012-03-21 CVE Published
2024-08-06 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-264: Permissions, Privileges, and Access Controls

CAPEC

References (8)

URL	Tag	Source
http://osvdb.org/80473	Vdb Entry
http://osvdb.org/80474	Vdb Entry
http://www.ieee-security.org/TC/SP2012/program.html	X_refsource_misc
http://www.securityfocus.com/archive/1/522005	Mailing List
http://www.securityfocus.com/bid/52611	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/74301	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html	2018-01-18
http://www.mandriva.com/security/advisories?name=MDVSA-2012:094	2018-01-18

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Clamav Search vendor "Clamav"		Clamav Search vendor "Clamav" for product "Clamav"				0.96.4 Search vendor "Clamav" for product "Clamav" and version "0.96.4"		-		Affected
Sophos Search vendor "Sophos"		Sophos Anti-virus Search vendor "Sophos" for product "Sophos Anti-virus"				4.61.0 Search vendor "Sophos" for product "Sophos Anti-virus" and version "4.61.0"		-		Affected