CVE-2001-1180

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2001-07-10 · updated 2026-06-16

Description

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.

Affected products

FreeBSD: 4.0, 4.1, 4.2, 4.3

References

http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html
http://ciac.llnl.gov/ciac/bulletins/l-111.shtml
http://www.kb.cert.org/vuls/id/943633
http://www.osvdb.org/1897
http://www.securityfocus.com/bid/3007
https://exchange.xforce.ibmcloud.com/vulnerabilities/6829
http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.html
http://ciac.llnl.gov/ciac/bulletins/l-111.shtml
http://www.kb.cert.org/vuls/id/943633
http://www.osvdb.org/1897

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