ZoneLabs ZoneAlarm 3.0/3.1 SYN Packet denial of service ⚔ [Disputed]

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in ZoneLabs ZoneAlarm 3.0/3.1. The affected element is an unknown function of the component SYN Packet Handler. The manipulation leads to denial of service. This vulnerability is listed as CVE-2002-1911. In addition, an exploit is available. The existence of this vulnerability is still disputed at present.

Detailsinfo

A vulnerability was found in ZoneLabs ZoneAlarm 3.0/3.1 (Firewall Software) and classified as problematic. This issue affects some unknown functionality of the component SYN Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

ZoneAlarm Pro 3.0 and 3.1, when configured to block all traffic, allows remote attackers to cause a denial of service (CPU and memory consumption) via a large number of SYN packets (SYN flood). NOTE: the vendor was not able to reproduce the issue.

The weakness was presented 12/31/2002 by Lincoln (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2002-1911 since 06/29/2005. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. The exploit is available at securityfocus.com. It is declared as proof-of-concept. The real existence of this vulnerability is still doubted at the moment.

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 databases at X-Force (10379), Exploit-DB (21943) and SecurityFocus (BID 5975†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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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: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/16/2002 🔍
12/31/2002 +76 days 🔍
12/31/2002 +0 days 🔍
06/29/2005 +911 days 🔍
08/05/2014 +3324 days 🔍
05/17/2025 +3938 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Lincoln
Status: Not defined
Disputed: 🔍

CVE: CVE-2002-1911 (🔍)
GCVE (CVE): GCVE-0-2002-1911
GCVE (VulDB): GCVE-100-19553
X-Force: 10379
SecurityFocus: 5975 - Zone Labs ZoneAlarm Syn Flood Denial Of Service Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/05/2014 10:53
Updated: 05/17/2025 04:14
Changes: 08/05/2014 10:53 (46), 06/10/2018 09:06 (11), 07/05/2024 17:53 (19), 05/17/2025 04:14 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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