VDB-14769 · CVE-1999-0694 · GCVE-0-1999-0694

IBM AIX 4.2/4.3 ptrace denial of service

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic has been found in IBM AIX 4.2/4.3. The impacted element is the function ptrace. Performing a manipulation results in denial of service. This vulnerability is cataloged as CVE-1999-0694. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in IBM AIX 4.2/4.3 (Operating System). This affects the function ptrace. The manipulation with an unknown input 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:

Denial of service in AIX ptrace system call allows local users to crash the system.

The issue has been introduced in 05/17/1996. The weakness was shared 08/11/1999 as not defined advisory (CIAC). The advisory is shared at ciac.org. This vulnerability is uniquely identified as CVE-1999-0694. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1181 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

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

Productinfo

Type

Operating System

Vendor

Name

Version

License

commercial

Website

Vendor: https://www.ibm.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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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: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/17/1996 🔍
08/11/1999 +1181 days 🔍
08/11/1999 +0 days 🔍
06/21/2014 +5428 days 🔍
04/19/2026 +4320 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: ciac.org
Status: Confirmed

CVE: CVE-1999-0694 (🔍)
GCVE (CVE): GCVE-0-1999-0694
GCVE (VulDB): GCVE-100-14769

Entryinfo

Created: 06/21/2014 19:16
Updated: 04/19/2026 10:03
Changes: 06/21/2014 19:16 (41), 04/13/2019 11:01 (10), 04/19/2026 10:03 (18)
Complete: 🔍
Cache ID: 216::103