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CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0

TCP Wrappers (tcp_wrappers) in FreeBSD 4.1.1 through 4.3 with the PARANOID ACL option enabled does not properly check the result of a reverse DNS lookup, which could allow remote attackers to bypass intended access restrictions via DNS spoofing. • ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:56.tcp_wrappers.asc http://www.osvdb.org/5454 • CWE-863: Incorrect Authorization •

CVSS: 5.0EPSS: 0%CPEs: 4EXPL: 0

linprocfs on FreeBSD 4.3 and earlier does not properly restrict access to kernel memory, which allows one process with debugging rights on a privileged process to read restricted memory from that process. • ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:55.procfs.asc http://www.iss.net/security_center/static/7017.php http://www.osvdb.org/1938 http://www.securityfocus.com/bid/3217 •

CVSS: 6.2EPSS: 0%CPEs: 4EXPL: 0

fts routines in FreeBSD 4.3 and earlier, NetBSD before 1.5.2, and OpenBSD 2.9 and earlier can be forced to change (chdir) into a different directory than intended when the directory above the current directory is moved, which could cause scripts to perform dangerous actions on the wrong directories. • ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:40.fts.v1.1.asc http://archives.neohapsis.com/archives/netbsd/2001-q3/0204.html http://www.iss.net/security_center/static/8715.php http://www.openbsd.org/errata28.html http://www.osvdb.org/5466 http://www.securityfocus.com/bid/3205 •

CVSS: 10.0EPSS: 0%CPEs: 87EXPL: 3

Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function. • https://www.exploit-db.com/exploits/21018 ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-01:49.telnetd.asc ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2001-012.txt.asc ftp://patches.sgi.com/support/free/security/advisories/20010801-01-P ftp://stage.caldera.com/pub/security/openserver/CSSA-2001-SCO.10/CSSA-2001-SCO.10.txt http://archives.neohapsis.com/archives/hp/2001-q4/0014.html http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000413 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •

CVSS: 7.2EPSS: 0%CPEs: 4EXPL: 2

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. • 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.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 •