CVE-2012-1458 - Vulnerability Details - OpenCVE

Description

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.

Published: 2012-03-21

Score: 4.3 Medium

EPSS: 8.1% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:clamav:clamav:0.96.4:::::::*
	cpe:2.3:a:sophos:sophos_anti-virus:4.61.0:::::::*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
Ubuntu USN	USN-1482-1	ClamAV vulnerabilities

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.08119.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html
http://osvdb.org/80473
http://osvdb.org/80474
http://www.ieee-security.org/TC/SP2012/program.html
http://www.mandriva.com/security/advisories?name=MDVSA-2012:094
http://www.securityfocus.com/archive/1/522005
http://www.securityfocus.com/bid/52611
https://exchange.xforce.ibmcloud.com/vulnerabilities/74301

History

No history.

Subscriptions

Clamav Clamav

Sophos Sophos Anti-virus

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2012-03-21T10:00:00.000Z

Updated: 2024-08-06T19:01:00.335Z

Reserved: 2012-02-29T00:00:00.000Z

Link: CVE-2012-1458

Vulnrichment

No data.

NVD

Status : Modified

Published: 2012-03-21T10:11:49.317

Modified: 2026-04-29T01:13:23.040

Link: CVE-2012-1458

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-264

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2012-03-19T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-01-17T19:57:01.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "openSUSE-SU-2012:0833", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html"}, {"name": "20120319 Evasion attacks expoliting file-parsing vulnerabilities in antivirus products", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "http://www.securityfocus.com/archive/1/522005"}, {"name": "52611", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/52611"}, {"name": "80473", "tags": ["vdb-entry", "x_refsource_OSVDB"], "url": "http://osvdb.org/80473"}, {"tags": ["x_refsource_MISC"], "url": "http://www.ieee-security.org/TC/SP2012/program.html"}, {"name": "multiple-av-chm-header-evasion(74301)", "tags": ["vdb-entry", "x_refsource_XF"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74301"}, {"name": "80474", "tags": ["vdb-entry", "x_refsource_OSVDB"], "url": "http://osvdb.org/80474"}, {"name": "MDVSA-2012:094", "tags": ["vendor-advisory", "x_refsource_MANDRIVA"], "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:094"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2012-1458", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "openSUSE-SU-2012:0833", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html"}, {"name": "20120319 Evasion attacks expoliting file-parsing vulnerabilities in antivirus products", "refsource": "BUGTRAQ", "url": "http://www.securityfocus.com/archive/1/522005"}, {"name": "52611", "refsource": "BID", "url": "http://www.securityfocus.com/bid/52611"}, {"name": "80473", "refsource": "OSVDB", "url": "http://osvdb.org/80473"}, {"name": "http://www.ieee-security.org/TC/SP2012/program.html", "refsource": "MISC", "url": "http://www.ieee-security.org/TC/SP2012/program.html"}, {"name": "multiple-av-chm-header-evasion(74301)", "refsource": "XF", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74301"}, {"name": "80474", "refsource": "OSVDB", "url": "http://osvdb.org/80474"}, {"name": "MDVSA-2012:094", "refsource": "MANDRIVA", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:094"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T19:01:00.335Z"}, "title": "CVE Program Container", "references": [{"name": "openSUSE-SU-2012:0833", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html"}, {"name": "20120319 Evasion attacks expoliting file-parsing vulnerabilities in antivirus products", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"], "url": "http://www.securityfocus.com/archive/1/522005"}, {"name": "52611", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/52611"}, {"name": "80473", "tags": ["vdb-entry", "x_refsource_OSVDB", "x_transferred"], "url": "http://osvdb.org/80473"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://www.ieee-security.org/TC/SP2012/program.html"}, {"name": "multiple-av-chm-header-evasion(74301)", "tags": ["vdb-entry", "x_refsource_XF", "x_transferred"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74301"}, {"name": "80474", "tags": ["vdb-entry", "x_refsource_OSVDB", "x_transferred"], "url": "http://osvdb.org/80474"}, {"name": "MDVSA-2012:094", "tags": ["vendor-advisory", "x_refsource_MANDRIVA", "x_transferred"], "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:094"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2012-1458", "datePublished": "2012-03-21T10:00:00.000Z", "dateReserved": "2012-02-29T00:00:00.000Z", "dateUpdated": "2024-08-06T19:01:00.335Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:clamav:clamav:0.96.4:*:*:*:*:*:*:*", "matchCriteriaId": "953C363B-AD5B-4C53-AAF0-AB6BA4040D74", "vulnerable": true}, {"criteria": "cpe:2.3:a:sophos:sophos_anti-virus:4.61.0:*:*:*:*:*:*:*", "matchCriteriaId": "0912E21E-1EEB-4ADD-958F-F8AEBBF7C5E6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "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 detecci\u00f3n de malware a trav\u00e9s de un intervalo de restablecimiento manipulado en la cabecera LZXC de un archivo CHM. NOTA: esto m\u00e1s adelante se puede dividir en varios CVEs si la informaci\u00f3n adicional que se publica muestra que el error se produjo de forma independiente en diferentes implementaciones del analizador de CHM."}], "id": "CVE-2012-1458", "lastModified": "2026-04-29T01:13:23.040", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-03-21T10:11:49.317", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html"}, {"source": "cve@mitre.org", "url": "http://osvdb.org/80473"}, {"source": "cve@mitre.org", "url": "http://osvdb.org/80474"}, {"source": "cve@mitre.org", "url": "http://www.ieee-security.org/TC/SP2012/program.html"}, {"source": "cve@mitre.org", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:094"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/archive/1/522005"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/52611"}, {"source": "cve@mitre.org", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74301"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00002.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/80473"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://osvdb.org/80474"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ieee-security.org/TC/SP2012/program.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2012:094"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/archive/1/522005"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/52611"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/74301"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-264"}], "source": "nvd@nist.gov", "type": "Primary"}]}