CVE-2012-4436

View on CVE.org

Published Oct 22, 2012 CVSS 2.0 · 4.4 Medium EPSS < 1% KEV · Not listed

Description

Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.

Analysis

No analysis available yet

Affected Products

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:cipherdyne:fwknop::::::::
	cpe:2.3:a:cipherdyne:fwknop:2.0:::::::*
	cpe:2.3:a:cipherdyne:fwknop:2.0.1:::::::*

No data.

No data available yet.

Remediation

No remediation available yet

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2012-4370	Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Local

Access Complexity Medium

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.656% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html
http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc
http://www.openwall.com/lists/oss-security/2012/09/19/2
http://www.openwall.com/lists/oss-security/2012/09/20/4

History

No history.

Subscriptions

Cipherdyne Fwknop

Weaknesses

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer

Sources

CVE record Updated: Sep 16, 2024, 7:10 PM

Status: PUBLISHED
Assigner: redhat
Published: Oct 22, 2012, 11:00 PM
Updated: Sep 16, 2024, 7:10 PM
Reserved: Aug 21, 2012, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 16, 2026, 11:45 PM

Status: Modified
Published: Oct 22, 2012, 11:55 PM
Modified: Jun 16, 2026, 11:45 PM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2012-10-22T23:00:00.000Z", "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat"}, "references": [{"name": "[oss-security] 20120919 CVE Request -- fwknop 2.0.3: Multiple security issues", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"}, {"name": "[oss-security] 20120919 Re: CVE Request -- fwknop 2.0.3: Multiple security issues", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "secalert@redhat.com", "ID": "CVE-2012-4436", "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": "Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "[oss-security] 20120919 CVE Request -- fwknop 2.0.3: Multiple security issues", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"}, {"name": "[oss-security] 20120919 Re: CVE Request -- fwknop 2.0.3: Multiple security issues", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"}, {"name": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html", "refsource": "CONFIRM", "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"}, {"name": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=a60f05ad44e824f6230b22f8976399340cb535dc", "refsource": "CONFIRM", "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git;a=commitdiff;h=a60f05ad44e824f6230b22f8976399340cb535dc"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T20:35:09.716Z"}, "title": "CVE Program Container", "references": [{"name": "[oss-security] 20120919 CVE Request -- fwknop 2.0.3: Multiple security issues", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"}, {"name": "[oss-security] 20120919 Re: CVE Request -- fwknop 2.0.3: Multiple security issues", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc"}]}]}, "cveMetadata": {"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "assignerShortName": "redhat", "cveId": "CVE-2012-4436", "datePublished": "2012-10-22T23:00:00.000Z", "dateReserved": "2012-08-21T00:00:00.000Z", "dateUpdated": "2024-09-16T19:10:39.397Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "secalert@redhat.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cipherdyne:fwknop:*:*:*:*:*:*:*:*", "matchCriteriaId": "86145D7E-F2E9-475D-8403-AF11FE48A1BA", "versionEndIncluding": "2.0.2", "vulnerable": true}, {"criteria": "cpe:2.3:a:cipherdyne:fwknop:2.0:*:*:*:*:*:*:*", "matchCriteriaId": "CED7A956-59FA-4113-B297-B7726A0F0FB4", "vulnerable": true}, {"criteria": "cpe:2.3:a:cipherdyne:fwknop:2.0.1:*:*:*:*:*:*:*", "matchCriteriaId": "8BCB6F50-1B75-4ABE-B9C1-83D26CCB48E1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Buffer overflow in the run_last_args function in client/fwknop.c in fwknop before 2.0.3, when processing --last, might allow local users to cause a denial of service (client crash) and possibly execute arbitrary code via many .fwknop.run arguments."}, {"lang": "es", "value": "Desbordamiento de b\u00fafer en la funci\u00f3n run_last_args en ??client/fwknop.c en fwknop antes de v2.0.3, cuando se est\u00e1 procesando --last, podr\u00eda permitir a usuarios locales provocar una denegaci\u00f3n de servicio (ca\u00edda de cliente) y posiblemente ejecutar c\u00f3digo arbitrario a trav\u00e9s de varios argumentos .fwknop.run."}], "id": "CVE-2012-4436", "lastModified": "2026-06-16T23:45:05.813", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:M/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.4, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2012-10-22T23:55:07.133", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"}, {"source": "secalert@redhat.com", "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.cipherdyne.org/blog/2012/09/software-release-fwknop-2.0.3.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.cipherdyne.org/cgi-bin/gitweb.cgi?p=fwknop.git%3Ba=commitdiff%3Bh=a60f05ad44e824f6230b22f8976399340cb535dc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2012/09/19/2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2012/09/20/4"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}