CVE-2000-0453

View on CVE.org

Published Jul 12, 2000 CVSS 2.0 · 5.0 Medium EPSS 3.0% KEV · Not listed

Description

XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000.

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:xfree86_project:x11r6:3.3.5:::::::*
	cpe:2.3:a:xfree86_project:x11r6:3.3.6:::::::*
	cpe:2.3:a:xfree86_project:x11r6:4.0:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2000-0452	XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000.

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 3.0% (2.964% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt
http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html
http://www.securityfocus.com/bid/1235

History

No history.

Subscriptions

Xfree86 Project X11r6

Weaknesses

NVD-CWE-Other

Sources

CVE record Updated: Aug 8, 2024, 5:21 AM

Status: PUBLISHED
Assigner: mitre
Published: Jul 12, 2000, 4:00 AM
Updated: Aug 8, 2024, 5:21 AM
Reserved: Jun 14, 2000, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 16, 2026, 9:51 PM

Status: Modified
Published: May 18, 2000, 4:00 AM
Modified: Jun 16, 2026, 9:51 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"}]}], "datePublic": "2000-05-18T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2005-11-02T10:00:00.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"name": "20000518 Nasty XFree Xserver DoS", "tags": ["mailing-list", "x_refsource_BUGTRAQ"], "url": "http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html"}, {"name": "1235", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/1235"}, {"name": "CSSA-2000-012.0", "tags": ["vendor-advisory", "x_refsource_CALDERA"], "url": "ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2000-0453", "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": "XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "20000518 Nasty XFree Xserver DoS", "refsource": "BUGTRAQ", "url": "http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html"}, {"name": "1235", "refsource": "BID", "url": "http://www.securityfocus.com/bid/1235"}, {"name": "CSSA-2000-012.0", "refsource": "CALDERA", "url": "ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-08T05:21:29.681Z"}, "title": "CVE Program Container", "references": [{"name": "20000518 Nasty XFree Xserver DoS", "tags": ["mailing-list", "x_refsource_BUGTRAQ", "x_transferred"], "url": "http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html"}, {"name": "1235", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/1235"}, {"name": "CSSA-2000-012.0", "tags": ["vendor-advisory", "x_refsource_CALDERA", "x_transferred"], "url": "ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2000-0453", "datePublished": "2000-07-12T04:00:00.000Z", "dateReserved": "2000-06-14T00:00:00.000Z", "dateUpdated": "2024-08-08T05:21:29.681Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:xfree86_project:x11r6:3.3.5:*:*:*:*:*:*:*", "matchCriteriaId": "B43D5F86-97B2-4175-8ED7-1F937850F9DB", "vulnerable": true}, {"criteria": "cpe:2.3:a:xfree86_project:x11r6:3.3.6:*:*:*:*:*:*:*", "matchCriteriaId": "0946A224-6A0C-4DE3-89F9-200682431737", "vulnerable": true}, {"criteria": "cpe:2.3:a:xfree86_project:x11r6:4.0:*:*:*:*:*:*:*", "matchCriteriaId": "F33E5444-E178-4F49-BDA1-DE576D8526EE", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000."}], "id": "CVE-2000-0453", "lastModified": "2026-06-16T21:51:46.020", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2000-05-18T04:00:00.000", "references": [{"source": "cve@mitre.org", "url": "ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt"}, {"source": "cve@mitre.org", "url": "http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/1235"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/1235"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-Other"}], "source": "nvd@nist.gov", "type": "Primary"}]}