Is CVE-1999-1214 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-1999-1214 being exploited in the wild.

How severe is CVE-1999-1214?

Low severity, with a CVSS score of 2.1, published 15 September 1997.

Which products and versions are affected?

Bsd 4.4BSD kernel All versions prior to September 1997 patches; Freebsd Versions prior to 1997-09-15 patches; Netbsd Versions prior to 1997-09-15 patches; Openbsd Versions prior to 1997-09-15 patches; and 1 more.

Is there a fix for CVE-1999-1214?

A patch was published on 1997-09-15: Patches provided for OpenBSD kernel Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-1999-1214 attacked?

It is attacked with local access, in an operating system.

Am I affected by CVE-1999-1214?

Check whether you run Bsd 4.4BSD kernel, Freebsd, Netbsd or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-1999-1214: BSD Kernel Improper Credential Validation in Asynchronous I/O

CVE-1999-1214 · Severity: low · CVSS 2.1 · Published 1997-09-15

A vulnerability in the 4.4BSD-based operating system kernels allows a local user to disrupt or terminate other running programs. By exploiting a flaw in how the system handles background data notifications, an attacker can force the kernel to send signals to processes they do not own. This can lead to a denial of service where critical system services or other users' applications are unexpectedly shut down.

Technologies: Freebsd, Netbsd, Openbsd, Sgi Irix. Vendors: Bsd, Freebsd, Netbsd, OpenBSD, Sgi.

Quick answers

Is CVE-1999-1214 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-1999-1214 being exploited in the wild.
How severe is CVE-1999-1214?: Low severity, with a CVSS score of 2.1, published 15 September 1997.
Which products and versions are affected?: Bsd 4.4BSD kernel All versions prior to September 1997 patches; Freebsd Versions prior to 1997-09-15 patches; Netbsd Versions prior to 1997-09-15 patches; Openbsd Versions prior to 1997-09-15 patches; and 1 more.
Is there a fix for CVE-1999-1214?: A patch was published on 1997-09-15: Patches provided for OpenBSD kernel Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-1999-1214 attacked?: It is attacked with local access, in an operating system.
Am I affected by CVE-1999-1214?: Check whether you run Bsd 4.4BSD kernel, Freebsd, Netbsd or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The vulnerability exists in the kernel's asynchronous I/O facility, specifically within the handling of fcntl (F_SETOWN) and ioctl (FIOSETOWN, TIOCSPGRP) operations. The kernel does not verify if the calling process has the necessary permissions to signal the target process ID (PID) specified for I/O notification. Furthermore, the kernel fails to track credentials at the time of signal delivery, which allows for exploitation via PID reuse. An attacker can use this to send SIGIO or SIGURG signals to arbitrary processes; on some systems like SGI IRIX, these signals may default to process termination, enabling a local denial of service or potential service hijacking. Patches were released in September 1997 to implement credential checking during both the assignment and delivery of I/O notifications.

Affected products

BSD 4.4BSD kernel All versions prior to September 1997 patches
OpenBSD OpenBSD Versions prior to 1997-09-15 patches
FreeBSD FreeBSD Versions prior to 1997-09-15 patches
NetBSD NetBSD Versions prior to 1997-09-15 patches
SGI IRIX All versions prior to September 1997 patches

Timeline

1997-09-15: advisory: OpenBSD security advisory released
1997-09-15: patched: Patches provided for OpenBSD kernel
1997-09-15: disclosed: Vulnerability publicly disclosed via NVD and vendor advisories

References

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