NFR 1.5/1.6 TCP Packet Null Packet denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in NFR 1.5/1.6 and classified as problematic. This affects an unknown part of the component TCP Packet Handler. Performing a manipulation as part of Null Packet results in denial of service. This vulnerability is known as CVE-1999-1503. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in NFR 1.5/1.6. This affects an unknown part of the component TCP Packet Handler. The manipulation as part of a Null Packet leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Network Flight Recorder (NFR) 1.5 and 1.6 allows remote attackers to cause a denial of service in nfrd (crash) via a TCP packet with a null header and data field.

The weakness was published 04/08/1998 by Mudge with L0pht as not defined posting (Mailing List). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-1999-1503. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 63†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/08/1998 🔍
04/08/1998 +0 days 🔍
04/08/1998 +0 days 🔍
06/19/2014 +5916 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Mudge
Organization: L0pht
Status: Not defined

CVE: CVE-1999-1503 (🔍)
GCVE (CVE): GCVE-0-1999-1503
GCVE (VulDB): GCVE-100-14115
SecurityFocus: 63 - NFR Null TCP Packet Vulnerability

Entryinfo

Created: 06/19/2014 14:53
Updated: 04/17/2026 11:44
Changes: 06/19/2014 14:53 (46), 05/19/2018 09:54 (7), 04/17/2026 11:44 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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