CVE-2001-1180
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.60% probability · 47th percentile
- CISA KEV
- Not listed
- Affected
- freebsd/freebsd
- Source
- cve@mitre.org
References
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc
- http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.htmlExploit, Patch, Vendor Advisory
- http://ciac.llnl.gov/ciac/bulletins/l-111.shtml
- http://www.kb.cert.org/vuls/id/943633Patch, Third Party Advisory, US Government Resource
- http://www.osvdb.org/1897
- http://www.securityfocus.com/bid/3007Exploit, Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6829
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:42.signal.v1.1.asc
- http://archives.neohapsis.com/archives/bugtraq/2001-07/0179.htmlExploit, Patch, Vendor Advisory
- http://ciac.llnl.gov/ciac/bulletins/l-111.shtml
- http://www.kb.cert.org/vuls/id/943633Patch, Third Party Advisory, US Government Resource
- http://www.osvdb.org/1897
- http://www.securityfocus.com/bid/3007Exploit, Patch, Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/6829
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.