Linux Kernel ICMP Timestamp/Netmask information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel. Affected by this issue is some unknown functionality of the component ICMP Timestamp/Netmask Handler. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-1999-0524. No exploit is available. This vulnerability has a historic impact due to its background and reception.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel (Operating System). This vulnerability affects some unknown functionality of the component ICMP Timestamp/Netmask Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. The impact remains unknown. CVE summarizes:

icmp information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.

The weakness was published 08/01/1997 (Website). The advisory is shared for download at descriptions.securescout.com. This vulnerability was named CVE-1999-0524. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/25/2025). The MITRE ATT&CK project declares the attack technique as T1592. This vulnerability has a historic impact due to its background and reception.

The vulnerability scanner Nessus provides a plugin with the ID 10114 (ICMP Timestamp Request Remote Date Disclosure), which helps to determine the existence of the flaw in a target environment. It is assigned to the family General and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 82001 (ICMP Mask Reply).

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 (306), Tenable (10114), OSVDB (95†) and Vulnerability Center (SBV-412†). Similar entries are available at VDB-2600, VDB-9965, VDB-9969 and VDB-15343. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Apple Mac OS
  • Cisco IOS
  • HP HP-UX
  • HP Tru64
  • IBM AIX
  • IBM OS2
  • Linux Kernel
  • Microsoft Windows
  • Novell Netware
  • Sco Unix
  • Windriver Bsdos

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.9
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10114
Nessus Name: ICMP Timestamp Request Remote Date Disclosure
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 103190
OpenVAS Name: ICMP Timestamp Detection
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍

Timelineinfo

08/01/1997 🔍
08/01/1997 +0 days 🔍
08/01/1997 +0 days 🔍
08/01/1999 +730 days 🔍
09/12/2002 +1138 days 🔍
12/17/2002 +95 days 🔍
06/18/2014 +4201 days 🔍
10/25/2025 +4147 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: descriptions.securescout.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-1999-0524 (🔍)
GCVE (CVE): GCVE-0-1999-0524
GCVE (VulDB): GCVE-100-13960
X-Force: 306 - ICMP netmask request response
OSVDB: 95 - Multiple Vendor ICMP netmask Request Information Disclosure
Vulnerability Center: 412 - ICMP Information is Allowed From Arbitrary Hosts, Info

See also: 🔍

Entryinfo

Created: 06/18/2014 15:55
Updated: 10/25/2025 23:12
Changes: 06/18/2014 15:55 (72), 05/06/2019 17:23 (3), 03/17/2025 16:46 (17), 10/25/2025 23:12 (2)
Complete: 🔍
Cache ID: 216::103

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