What’s Vulnerable › Vulnerabilities

CVE-1999-1214

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1997-09-15 · updated 2026-06-16
• Weakness: CWE-255

Description

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.

Affected products

• Bsd: 4.4
• FreeBSD: 6.2-stable
• Netbsd: 2.0.4
• OpenBSD: 2.1
• Sgi Irix: all versions

References

• http://www.openbsd.com/advisories/signals.txt
• http://www.openbsd.com/advisories/signals.txt
• http://www.openbsd.com/advisories/signals.txt
• http://www.openbsd.com/advisories/signals.txt
• http://www.osvdb.org/11062
• https://exchange.xforce.ibmcloud.com/vulnerabilities/556
• http://www.openbsd.com/advisories/signals.txt
• http://www.openbsd.com/advisories/signals.txt
• http://www.openbsd.com/advisories/signals.txt
• http://www.openbsd.com/advisories/signals.txt
• http://www.osvdb.org/11062
• https://exchange.xforce.ibmcloud.com/vulnerabilities/556

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