CVE Catalog

CVE-2001-1180

High
Published: Translated: NVD NIST

Summary

FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, allowing local users to gain privileges.

Risk Assessment

Local users can exploit this vulnerability to elevate their privileges, posing a serious security risk to the system.

Recommendation

It is recommended to update the system to a newer version that fixes this vulnerability and to restrict access to the rfork function for unauthorized users.

Related vulnerabilities

Original NVD description (English source)

FreeBSD 4.3 does not properly clear shared signal handlers when executing a process, which allows local users to gain privileges by calling rfork with a shared signal handler, having the child process execute a setuid program, and sending a signal to the child.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS