Sco Santa Cruz Operation (SCO) OpenServer

OpenSSL 0.9.6 before 0.9.6d does not properly handle unknown message types, which allows remote attackers to cause a denial of service (infinite loop), as demonstrated using the Codenomicon TLS Test Tool.

DNS cache poisoning via BIND, by predictable query IDs.

Xpdf, as used in products such as gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others, allows attackers to cause a denial of service (crash) via a crafted FlateDecode stream that triggers a null dereference.

Denial of Service vulnerability in BIND 8 Releases via maliciously formatted DNS messages.

The CCITTFaxStream::CCITTFaxStream function in Stream.cc for xpdf, gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others allows attackers to corrupt the heap via negative or large integers in a CCITTFaxDecode stream, which lead to integer overflows and integer underflows.

The getdbm procedure in ypxfrd allows local users to read arbitrary files, and remote attackers to read databases outside /var/yp, via a directory traversal and symlink attack on the domain and map arguments.

Delete or create a file via rpc.statd, due to invalid information.

Inetd in OpenServer 5.0.5 allows remote attackers to cause a denial of service (crash) via a port scan, e.g. with nmap -PO.

The NFS mountd service on SCO UnixWare 7.1.1, 7.1.3, 7.1.4, and 7.0.1, and possibly other versions, when run from inetd, allows remote attackers to cause a denial of service (memory exhaustion) via a series of requests, which causes inetd to launch a separate process for each request.

Jolt ICMP attack causes a denial of service in Windows 95 and Windows NT systems.

Sendmail decode alias can be used to overwrite sensitive files.

Vulnerability in xserver in SCO UnixWare 2.1.x and OpenServer 5.05 and earlier allows an attacker to cause a denial of service which prevents access to reserved port numbers below 1024.

Buffer overflow in nwprint in SCO OpenServer 5.0.7 allows local users to execute arbitrary code via a long command line argument.

Buffer overflow in lpshut in SCO OpenServer 5.0.6 can allow a local attacker to gain additional privileges via a long first argument to lpshut.

Buffer overflow in lpforms in SCO OpenServer 5.0-5.0.6 can allow a local attacker to gain additional privileges via a long first argument to the lpforms command.

lpusers as included with SCO OpenServer 5.0 through 5.0.6 allows a local attacker to gain additional privileges via a buffer overflow attack in the '-u' command line parameter.

Sendmail allows local users to write to a file and gain group permissions via a .forward or :include: file.

sendmail 8.9.3, as included with the MMDF 2.43.3b package in SCO OpenServer 5.0.6, can allow a local attacker to gain additional privileges via a buffer overflow in the first argument to the command.

Buffer overflow in lpstat in SCO OpenServer 5.0 through 5.0.6a allows local users to execute arbitrary code as group bin via a long command line argument.

Stack-based buffer overflow in (1) backupsh and (2) authsh in SCO Openserver 5.0.7 allows local users to execute arbitrary code via a long HOME environment variable.

Buffer overflow in (1) termsh, (2) atcronsh, and (3) auditsh in SCO OpenServer 5.0.6 and 5.0.7 might allow local users to execute arbitrary code via a long HOME environment variable.

Multiple buffer overflows in programs used by scoadmin and sysadmsh in SCO OpenServer 5.0.6a and earlier allow local users to gain privileges via a long TERM environment variable to (1) atcronsh, (2) auditsh, (3) authsh, (4) backupsh, (5) lpsh, (6) sysadm.menu, or (7) termsh.

Unknown vulnerability in chroot on SCO UnixWare 7.1.1 through 7.1.4 allows local users to escape the chroot jail and conduct unauthorized activities.

vi as included with SCO OpenServer 5.0 - 5.0.6 allows a local attacker to overwrite arbitrary files via a symlink attack.

Multiple unknown vulnerabilities in MMDF on OpenServer 5.0.6 and 5.0.7, and possibly other operating systems, may allow attackers to cause a denial of service by triggering a null dereference.

userOsa in SCO OpenServer allows local users to corrupt files via a symlink attack.

Multiple unknown vulnerabilities in MMDF on OpenServer 5.0.6 and 5.0.7, and possibly other operating systems, may allow attackers to cause a denial of service by triggering a core dump.

Denial of service in BIND named via naptr.

snmpd in SCO OpenServer has an SNMP community string that is writable by default, which allows local attackers to modify the host's configuration.

Certain scripts in OpenServer before 5.0.6 allow local users to overwrite files and conduct other unauthorized activities via a symlink attack on temporary files.

Unknown vulnerability in SCO OpenServer 5.0.6 and earlier allows local users to modify critical information such as certain CPU registers and segment descriptors.

pcnfsd (aka rpc.pcnfsd) allows local users to change file permissions, or execute arbitrary commands through arguments in the RPC call.