CVE-1999-1214: The asynchronous I/O facility in 4.4 BSD kernel does not check user credentials when setting the recipient of I/O notifi
Summary
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.
Why It Matters
UNKNOWN severity with CVSS n/a.
Current Status
- Vulnerability status: Not listed in CISA KEV
- Last intelligence update: 2026-08-21 · source: NVD
Entity Activity Timeline
- 2026-08-21 — Intelligence record updated（NVD sync）
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:39.280Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
- 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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