VDB-13979 · CVE-1999-1214 · XFDB 556

BSD 2.0.4/2.1/4.4/6.2 Asynchronous I/O ioctl/fcntl Process ID credentials management

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 was found in BSD 2.0.4/2.1/4.4/6.2. It has been rated as problematic. This impacts the function ioctl/fcntl of the component Asynchronous I/O Handler. The manipulation as part of Process ID leads to credentials management. This vulnerability is traded as CVE-1999-1214. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in BSD 2.0.4/2.1/4.4/6.2. This issue affects the function ioctl/fcntl of the component Asynchronous I/O Handler. The manipulation as part of a Process ID leads to a credentials management vulnerability. Using CWE to declare the problem leads to CWE-255. Impacted is availability. The summary by CVE is:

The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notification, which allows local users to cause a denial of service by using certain ioctl and fcntl calls to cause the signal to be sent to an arbitrary process ID.

The weakness was shared 09/15/1997 by Alan Peakall (Website). It is possible to read the advisory at openbsd.com. The identification of this vulnerability is CVE-1999-1214. The exploitation is known to be easy. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1552 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (556) and OSVDB (11062†). 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: 4.0
VulDB Meta Temp Score: 3.8

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Credentials management
CWE: CWE-255
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/15/1997 🔍
09/15/1997 +0 days 🔍
04/09/2004 +2397 days 🔍
06/18/2014 +3722 days 🔍
04/17/2026 +4320 days 🔍

Sourcesinfo

Advisory: openbsd.com
Researcher: Alan Peakall
Status: Confirmed

CVE: CVE-1999-1214 (🔍)
GCVE (CVE): GCVE-0-1999-1214
GCVE (VulDB): GCVE-100-13979
X-Force: 556
OSVDB: 11062 - Multiple BSD Kernel Asynchronous I/O Facility Notification DoS

Entryinfo

Created: 06/18/2014 16:14
Updated: 04/17/2026 01:17
Changes: 06/18/2014 16:14 (43), 05/19/2018 09:51 (9), 04/17/2026 01:17 (19)
Complete: 🔍
Cache ID: 216::103

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