stasvinokur/cve-and-cwe-dataset-1999-2025 huggingface dataset:
CVE-2001-0032 (severity: HIGH, weakness: NVD-CWE-Other)
Format string vulnerability in ssldump possibly allows remote attackers to cause a denial of service and possibly gain root privileges via malicious format string specifiers in a URL.
CVE-2001-0033 (severity: HIGH, weakness: NVD-CWE-Other)
KTH Kerberos IV allows local users to change the configuration of a Kerberos server running at an elevated privilege by specifying an alternate directory using with the KRBCONFDIR environmental variable, which allows the user to gain additional privileges.
CVE-2001-0034 (severity: HIGH, weakness: NVD-CWE-Other)
KTH Kerberos IV allows local users to specify an alternate proxy using the krb4_proxy variable, which allows the user to generate false proxy responses and possibly gain privileges.
CVE-2001-0035 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in the kdc_reply_cipher function in KTH Kerberos IV allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long authentication request.
CVE-2001-0036 (severity: LOW, weakness: NVD-CWE-Other)
KTH Kerberos IV allows local users to overwrite arbitrary files via a symlink attack on a ticket file.
CVE-2001-0037 (severity: MEDIUM, weakness: NVD-CWE-Other)
Directory traversal vulnerability in HomeSeer before 1.4.29 allows remote attackers to read arbitrary files via a URL containing .. (dot dot) specifiers.
CVE-2001-0038 (severity: MEDIUM, weakness: NVD-CWE-Other)
Offline Explorer 1.4 before Service Release 2 allows remote attackers to read arbitrary files by specifying the drive letter (e.g. C:) in the requested URL.
CVE-2001-0039 (severity: MEDIUM, weakness: NVD-CWE-Other)
IPSwitch IMail 6.0.5 allows remote attackers to cause a denial of service using the SMTP AUTH command by sending a base64-encoded user password whose length is between 80 and 136 bytes.
CVE-2001-0040 (severity: LOW, weakness: NVD-CWE-Other)
APC UPS daemon, apcupsd, saves its process ID in a world-writable file, which allows local users to kill an arbitrary process by specifying the target process ID in the apcupsd.pid file.
CVE-2001-0041 (severity: HIGH, weakness: CWE-399)
Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote attackers to cause a denial of service via a series of failed telnet authentication attempts.
CVE-2001-0042 (severity: MEDIUM, weakness: NVD-CWE-Other)
PHP 3.x (PHP3) on Apache 1.3.6 allows remote attackers to read arbitrary files via a modified .. (dot dot) attack containing "%5c" (encoded backslash) sequences.
CVE-2001-0043 (severity: HIGH, weakness: NVD-CWE-Other)
phpGroupWare before 0.9.7 allows remote attackers to execute arbitrary PHP commands by specifying a malicious include file in the phpgw_info parameter of the phpgw.inc.php program.
CVE-2001-0044 (severity: HIGH, weakness: NVD-CWE-Other)
Multiple buffer overflows in Lexmark MarkVision printer driver programs allows local users to gain privileges via long arguments to the cat_network, cat_paraller, and cat_serial commands.
CVE-2001-0045 (severity: HIGH, weakness: NVD-CWE-Other)
The default permissions for the RAS Administration key in Windows NT 4.0 allows local users to execute arbitrary commands by changing the value to point to a malicious DLL, aka one of the "Registry Permissions" vulnerabilities.
CVE-2001-0046 (severity: MEDIUM, weakness: NVD-CWE-Other)
The default permissions for the SNMP Parameters registry key in Windows NT 4.0 allows remote attackers to read and possibly modify the SNMP community strings to obtain sensitive information or modify network configuration, aka one of the "Registry Permissions" vulnerabilities.
CVE-2001-0047 (severity: HIGH, weakness: NVD-CWE-Other)
The default permissions for the MTS Package Administration registry key in Windows NT 4.0 allows local users to install or modify arbitrary Microsoft Transaction Server (MTS) packages and gain privileges, aka one of the "Registry Permissions" vulnerabilities.
CVE-2001-0048 (severity: HIGH, weakness: NVD-CWE-Other)
The "Configure Your Server" tool in Microsoft 2000 domain controllers installs a blank password for the Directory Service Restore Mode, which allows attackers with physical access to the controller to install malicious programs, aka the "Directory Service Restore Mode Password" vulnerability.
CVE-2001-0049 (severity: MEDIUM, weakness: NVD-CWE-Other)
WatchGuard SOHO FireWall 2.2.1 and earlier allows remote attackers to cause a denial of service via a large number of GET requests.
CVE-2001-0050 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in BitchX IRC client allows remote attackers to cause a denial of service and possibly execute arbitrary commands via an IP address that resolves to a long DNS hostname or domain name.
CVE-2001-0051 (severity: HIGH, weakness: NVD-CWE-Other)
IBM DB2 Universal Database version 6.1 creates an account with a default user name and password, which allows remote attackers to gain access to the database.
CVE-2001-0052 (severity: LOW, weakness: NVD-CWE-Other)
IBM DB2 Universal Database version 6.1 allows users to cause a denial of service via a malformed query.
CVE-2001-0053 (severity: HIGH, weakness: NVD-CWE-Other)
One-byte buffer overflow in replydirname function in BSD-based ftpd allows remote attackers to gain root privileges.
CVE-2001-0054 (severity: MEDIUM, weakness: CWE-22)
Directory traversal vulnerability in FTP Serv-U before 2.5i allows remote attackers to escape the FTP root and read arbitrary files by appending a string such as "/..%20." to a CD command, a variant of a .. (dot dot) attack.
CVE-2001-0055 (severity: MEDIUM, weakness: NVD-CWE-Other)
CBOS 2.4.1 and earlier in Cisco 600 routers allows remote attackers to cause a denial of service via a slow stream of TCP SYN packets.
CVE-2001-0056 (severity: HIGH, weakness: NVD-CWE-Other)
The Cisco Web Management interface in routers running CBOS 2.4.1 and earlier does not log invalid logins, which allows remote attackers to guess passwords without detection.
CVE-2001-0057 (severity: MEDIUM, weakness: NVD-CWE-Other)
Cisco 600 routers running CBOS 2.4.1 and earlier allow remote attackers to cause a denial of service via a large ICMP echo (ping) packet.
CVE-2001-0058 (severity: MEDIUM, weakness: NVD-CWE-Other)
The Web interface to Cisco 600 routers running CBOS 2.4.1 and earlier allow remote attackers to cause a denial of service via a URL that does not end in a space character.
CVE-2001-0059 (severity: MEDIUM, weakness: NVD-CWE-Other)
patchadd in Solaris allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0060 (severity: HIGH, weakness: NVD-CWE-Other)
Format string vulnerability in stunnel 3.8 and earlier allows attackers to execute arbitrary commands via a malformed ident username.
CVE-2001-0061 (severity: HIGH, weakness: NVD-CWE-Other)
procfs in FreeBSD and possibly other operating systems does not properly restrict access to per-process mem and ctl files, which allows local users to gain root privileges by forking a child process and executing a privileged process from the child, while the parent retains access to the child's address space.
CVE-2001-0062 (severity: LOW, weakness: NVD-CWE-Other)
procfs in FreeBSD and possibly other operating systems allows local users to cause a denial of service by calling mmap on the process' own mem file, which causes the kernel to hang.
CVE-2001-0063 (severity: HIGH, weakness: NVD-CWE-Other)
procfs in FreeBSD and possibly other operating systems allows local users to bypass access control restrictions for a jail environment and gain additional privileges.
CVE-2001-0064 (severity: MEDIUM, weakness: NVD-CWE-Other)
Webconfig, IMAP, and other services in MDaemon 3.5.0 and earlier allows remote attackers to cause a denial of service via a long URL terminated by a "\r\n" string.
CVE-2001-0065 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in bftpd 1.0.13 allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long SITE CHOWN command.
CVE-2001-0066 (severity: HIGH, weakness: NVD-CWE-Other)
Secure Locate (slocate) allows local users to corrupt memory via a malformed database file that specifies an offset value that accesses memory outside of the intended buffer.
CVE-2001-0067 (severity: LOW, weakness: NVD-CWE-Other)
The installation of J-Pilot creates the .jpilot directory with the user's umask, which could allow local attackers to read other users' PalmOS backup information if their umasks are not securely set.
CVE-2001-0068 (severity: LOW, weakness: NVD-CWE-Other)
Mac OS Runtime for Java (MRJ) 2.2.3 allows remote attackers to use malicious applets to read files outside of the CODEBASE context via the ARCHIVE applet parameter.
CVE-2001-0069 (severity: LOW, weakness: NVD-CWE-Other)
dialog before 0.9a-20000118-3bis in Debian GNU/Linux allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0070 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in 1st Up Mail Server 4.1 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands, via a long MAIL FROM command.
CVE-2001-0071 (severity: LOW, weakness: NVD-CWE-Other)
gpg (aka GnuPG) 1.0.4 and other versions does not properly verify detached signatures, which allows attackers to modify the contents of a file without detection.
CVE-2001-0072 (severity: MEDIUM, weakness: NVD-CWE-Other)
gpg (aka GnuPG) 1.0.4 and other versions imports both public and private keys from public key servers without notifying the user about the private keys, which could allow an attacker to break the web of trust.
CVE-2001-0073 (severity: LOW, weakness: NVD-CWE-Other)
Buffer overflow in the find_default_type function in libsecure in NSA Security-enhanced Linux, which may allow attackers to modify critical data in memory.
CVE-2001-0074 (severity: MEDIUM, weakness: NVD-CWE-Other)
Directory traversal vulnerability in print.cgi in Technote allows remote attackers to read arbitrary files via a .. (dot dot) attack in the board parameter.
CVE-2001-0075 (severity: MEDIUM, weakness: NVD-CWE-Other)
Directory traversal vulnerability in main.cgi in Technote allows remote attackers to read arbitrary files via a .. (dot dot) attack in the filename parameter.
CVE-2001-0076 (severity: HIGH, weakness: NVD-CWE-Other)
register.cgi in Ikonboard 2.1.7b and earlier allows remote attackers to execute arbitrary commands via the SEND_MAIL parameter, which overwrites an internal program variable that references a program to be executed.
CVE-2001-0077 (severity: MEDIUM, weakness: NVD-CWE-Other)
The clustmon service in Sun Cluster 2.x does not require authentication, which allows remote attackers to obtain sensitive information such as system logs and cluster configurations.
CVE-2001-0078 (severity: LOW, weakness: NVD-CWE-Other)
in.mond in Sun Cluster 2.x allows local users to read arbitrary files via a symlink attack on the status file of a host running HA-NFS.
CVE-2001-0079 (severity: LOW, weakness: NVD-CWE-Other)
Support Tools Manager (STM) A.22.00 for HP-UX allows local users to overwrite arbitrary files via a symlink attack on the tool_stat.txt log file.
CVE-2001-0080 (severity: MEDIUM, weakness: NVD-CWE-Other)
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
CVE-2001-0081 (severity: MEDIUM, weakness: NVD-CWE-Other)
swinit in nCipher does not properly disable the Operator Card Set recovery feature even when explicitly disabled by the user, which could allow attackers to gain access to application keys.
CVE-2001-0082 (severity: HIGH, weakness: NVD-CWE-Other)
Check Point VPN-1/FireWall-1 4.1 SP2 with Fastmode enabled allows remote attackers to bypass access restrictions via malformed, fragmented packets.
CVE-2001-0083 (severity: MEDIUM, weakness: NVD-CWE-Other)
Windows Media Unicast Service in Windows Media Services 4.0 and 4.1 does not properly shut down some types of connections, producing a memory leak that allows remote attackers to cause a denial of service via a series of severed connections, aka the "Severed Windows Media Server Connection" vulnerability.
CVE-2001-0084 (severity: HIGH, weakness: NVD-CWE-Other)
GTK+ library allows local users to specify arbitrary modules via the GTK_MODULES environmental variable, which could allow local users to gain privileges if GTK+ is used by a setuid/setgid program.
CVE-2001-0085 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in Kermit communications software in HP-UX 11.0 and earlier allows local users to cause a denial of service and possibly execute arbitrary commands.
CVE-2001-0086 (severity: MEDIUM, weakness: NVD-CWE-Other)
CGI Script Center Subscribe Me LITE 2.0 and earlier allows remote attackers to delete arbitrary mailing list users without authentication by directly calling subscribe.pl with the target address as a parameter.
CVE-2001-0087 (severity: HIGH, weakness: NVD-CWE-Other)
itetris/xitetris 1.6.2 and earlier trusts the PATH environmental variable to find and execute the gunzip program, which allows local users to gain root privileges by changing their PATH so that it points to a malicious gunzip program.
CVE-2001-0088 (severity: HIGH, weakness: NVD-CWE-Other)
common.inc.php in phpWebLog 0.4.2 does not properly initialize the $CONF array, which inadvertently sets the password to a single character, allowing remote attackers to easily guess the SiteKey and gain administrative privileges to phpWebLog.
CVE-2001-0089 (severity: LOW, weakness: NVD-CWE-Other)
Internet Explorer 5.0 through 5.5 allows remote attackers to read arbitrary files from the client via the INPUT TYPE element in an HTML form, aka the "File Upload via Form" vulnerability.
CVE-2001-0090 (severity: MEDIUM, weakness: NVD-CWE-Other)
The Print Templates feature in Internet Explorer 5.5 executes arbitrary custom print templates without prompting the user, which could allow an attacker to execute arbitrary ActiveX controls, aka the "Browser Print Template" vulnerability.
CVE-2001-0091 (severity: LOW, weakness: NVD-CWE-Other)
The ActiveX control for invoking a scriptlet in Internet Explorer 5.0 through 5.5 renders arbitrary file types instead of HTML, which allows an attacker to read arbitrary files, aka a variant of the "Scriptlet Rendering" vulnerability.
CVE-2001-0092 (severity: LOW, weakness: NVD-CWE-Other)
A function in Internet Explorer 5.0 through 5.5 does not properly verify the domain of a frame within a browser window, which allows a remote attacker to read client files, aka a new variant of the "Frame Domain Verification" vulnerability.
CVE-2001-0093 (severity: HIGH, weakness: NVD-CWE-Other)
Vulnerability in telnetd in FreeBSD 1.5 allows local users to gain root privileges by modifying critical environmental variables that affect the behavior of telnetd.
CVE-2001-0094 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in kdc_reply_cipher of libkrb (Kerberos 4 authentication library) in NetBSD 1.5 and FreeBSD 4.2 and earlier, as used in Kerberised applications such as telnetd and login, allows local users to gain root privileges.
CVE-2001-0095 (severity: LOW, weakness: NVD-CWE-Other)
catman in Solaris 2.7 and 2.8 allows local users to overwrite arbitrary files via a symlink attack on the sman_PID temporary file.
CVE-2001-0096 (severity: MEDIUM, weakness: NVD-CWE-Other)
FrontPage Server Extensions (FPSE) in IIS 4.0 and 5.0 allows remote attackers to cause a denial of service via a malformed form, aka the "Malformed Web Form Submission" vulnerability.
CVE-2001-0097 (severity: MEDIUM, weakness: NVD-CWE-Other)
The Web interface for Infinite Interchange 3.6.1 allows remote attackers to cause a denial of service (application crash) via a large POST request.
CVE-2001-0098 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in Bea WebLogic Server before 5.1.0 allows remote attackers to execute arbitrary commands via a long URL that begins with a ".." string.
CVE-2001-0099 (severity: HIGH, weakness: NVD-CWE-Other)
bsguest.cgi guestbook script allows remote attackers to execute arbitrary commands via shell metacharacters in the email address.
CVE-2001-0100 (severity: HIGH, weakness: NVD-CWE-Other)
bslist.cgi mailing list script allows remote attackers to execute arbitrary commands via shell metacharacters in the email address.
CVE-2001-0101 (severity: HIGH, weakness: NVD-CWE-Other)
Vulnerability in fetchmail 5.5.0-2 and earlier in the AUTHENTICATE GSSAPI command.
CVE-2001-0102 (severity: HIGH, weakness: NVD-CWE-Other)
"Multiple Users" Control Panel in Mac OS 9 allows Normal users to gain Owner privileges by removing the Users & Groups Data File, which effectively removes the Owner password and allows the Normal user to log in as the Owner account without a password.
CVE-2001-0103 (severity: MEDIUM, weakness: CWE-310)
CoffeeCup Direct and Free FTP clients uses weak encryption to store passwords in the FTPServers.ini file, which could allow attackers to easily decrypt the passwords.
CVE-2001-0104 (severity: HIGH, weakness: NVD-CWE-Other)
MDaemon Pro 3.5.1 and earlier allows local users to bypass the "lock server" security setting by pressing the Cancel button at the password prompt, then pressing the enter key.
CVE-2001-0105 (severity: LOW, weakness: NVD-CWE-Other)
Vulnerability in top in HP-UX 11.04 and earlier allows local users to overwrite files owned by the "sys" group.
CVE-2001-0106 (severity: MEDIUM, weakness: NVD-CWE-Other)
Vulnerability in inetd server in HP-UX 11.04 and earlier allows attackers to cause a denial of service when the "swait" state is used by a server.
CVE-2001-0107 (severity: MEDIUM, weakness: NVD-CWE-Other)
Veritas Backup agent on Linux allows remote attackers to cause a denial of service by establishing a connection without sending any data, which causes the process to hang.
CVE-2001-0108 (severity: MEDIUM, weakness: NVD-CWE-Other)
PHP Apache module 4.0.4 and earlier allows remote attackers to bypass .htaccess access restrictions via a malformed HTTP request on an unrestricted page that causes PHP to use those access controls on the next page that is requested.
CVE-2001-0109 (severity: LOW, weakness: NVD-CWE-Other)
rctab in SuSE 7.0 and earlier allows local users to create or overwrite arbitrary files via a symlink attack on the rctmp temporary file.
CVE-2001-0110 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in jaZip Zip/Jaz drive manager allows local users to gain root privileges via a long DISPLAY environmental variable.
CVE-2001-0111 (severity: HIGH, weakness: NVD-CWE-Other)
Format string vulnerability in splitvt before 1.6.5 allows local users to execute arbitrary commands via the -rcfile command line argument.
CVE-2001-0112 (severity: HIGH, weakness: NVD-CWE-Other)
Multiple buffer overflows in splitvt before 1.6.5 allow local users to execute arbitrary commands.
CVE-2001-0113 (severity: HIGH, weakness: NVD-CWE-Other)
statsconfig.pl in OmniHTTPd 2.07 allows remote attackers to execute arbitrary commands via the mostbrowsers parameter, whose value is used as part of a generated Perl script.
CVE-2001-0114 (severity: MEDIUM, weakness: NVD-CWE-Other)
statsconfig.pl in OmniHTTPd 2.07 allows remote attackers to overwrite arbitrary files via the cgidir parameter.
CVE-2001-0115 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in arp command in Solaris 7 and earlier allows local users to execute arbitrary commands via a long -f parameter.
CVE-2001-0116 (severity: LOW, weakness: NVD-CWE-Other)
gpm 1.19.3 allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0117 (severity: LOW, weakness: NVD-CWE-Other)
sdiff 2.7 in the diffutils package allows local users to overwrite files via a symlink attack.
CVE-2001-0118 (severity: LOW, weakness: NVD-CWE-Other)
rdist 6.1.5 allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0119 (severity: LOW, weakness: NVD-CWE-Other)
getty_ps 2.0.7j allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0120 (severity: LOW, weakness: NVD-CWE-Other)
useradd program in shadow-utils program may allow local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0121 (severity: MEDIUM, weakness: NVD-CWE-Other)
ImageCast Control Center 4.1.0 allows remote attackers to cause a denial of service (resource exhaustion or system crash) via a long string to port 12002.
CVE-2001-0122 (severity: MEDIUM, weakness: NVD-CWE-Other)
Kernel leak in AfpaCache module of the Fast Response Cache Accelerator (FRCA) component of IBM HTTP Server 1.3.x and Websphere 3.52 allows remote attackers to cause a denial of service via a series of malformed HTTP requests that generate a "bad request" error.
CVE-2001-0123 (severity: MEDIUM, weakness: NVD-CWE-Other)
Directory traversal vulnerability in eXtropia bbs_forum.cgi 1.0 allows remote attackers to read arbitrary files via a .. (dot dot) attack on the file parameter.
CVE-2001-0124 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in exrecover in Solaris 2.6 and earlier possibly allows local users to gain privileges via a long command line argument.
CVE-2001-0125 (severity: LOW, weakness: NVD-CWE-Other)
exmh 2.2 and earlier allows local users to overwrite arbitrary files via a symlink attack on the exmhErrorMsg temporary file.
CVE-2001-0126 (severity: HIGH, weakness: NVD-CWE-Other)
Oracle XSQL servlet 1.0.3.0 and earlier allows remote attackers to execute arbitrary Java code by redirecting the XSQL server to another source via the xml-stylesheet parameter in the xslt stylesheet.
CVE-2001-0127 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in Olivier Debon Flash plugin (not the Macromedia plugin) allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long DefineSound tag.
CVE-2001-0128 (severity: HIGH, weakness: NVD-CWE-Other)
Zope before 2.2.4 does not properly compute local roles, which could allow users to bypass specified access restrictions and gain privileges.
CVE-2001-0129 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in Tinyproxy HTTP proxy 1.3.3 and earlier allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long connect request.
CVE-2001-0130 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in HTML parser of the Lotus R5 Domino Server before 5.06, and Domino Client before 5.05, allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a malformed font size specifier.
CVE-2001-0131 (severity: LOW, weakness: CWE-59)
htpasswd and htdigest in Apache 2.0a9, 1.3.14, and others allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0132 (severity: LOW, weakness: NVD-CWE-Other)
Interscan VirusWall 3.6.x and earlier follows symbolic links when uninstalling the product, which allows local users to overwrite arbitrary files via a symlink attack.
CVE-2001-0133 (severity: HIGH, weakness: NVD-CWE-Other)
The web administration interface for Interscan VirusWall 3.6.x and earlier does not use encryption, which could allow remote attackers to obtain the administrator password to sniff the administrator password via the setpasswd.cgi program or other HTTP GET requests that contain base64 encoded usernames and passwords.
CVE-2001-0134 (severity: HIGH, weakness: NVD-CWE-Other)
Buffer overflow in cpqlogin.htm in web-enabled agents for various Compaq management software products such as Insight Manager and Management Agents allows remote attackers to execute arbitrary commands via a long user name.
CVE-2001-0135 (severity: LOW, weakness: NVD-CWE-Other)
The default installation of Ultraboard 2000 2.11 creates the Skins, Database, and Backups directories with world-writeable permissions, which could allow local users to modify sensitive information or possibly insert and execute CGI programs.
CVE-2001-0136 (severity: MEDIUM, weakness: CWE-401)
Memory leak in ProFTPd 1.2.0rc2 allows remote attackers to cause a denial of service via a series of USER commands, and possibly SIZE commands if the server has been improperly installed.