GNU

GNU Enscript 1.6.1 and earlier allows local users to overwrite arbitrary files of the Enscript user via a symlink attack on temporary files.

Buffer overflow in glob function of glibc allows attackers to cause a denial of service (crash) and possibly execute arbitrary code via a glob pattern that ends in a brace "{" character.

Cross-site scripting vulnerability in Mailman email archiver before 2.08 allows attackers to obtain sensitive information or authentication credentials via a malicious link that is accessed by other web users.

Buffer overflows in gzip 1.3x, 1.2.4, and other versions might allow attackers to execute code via a long file name, possibly remotely if gzip is run on an FTP server.

Mailman 2.0.x before 2.0.6 allows remote attackers to gain access to list administrative pages when there is an empty site or list password, which is not properly handled during the call to the crypt function during authentication.

rcs2log, as used in Emacs 20.4, xemacs 21.1.10 and other versions before 21.4, and possibly other packages, allows local users to modify files of other users via a symlink attack on a temporary file.

Directory traversal vulnerability in GNU tar 1.13.19 and earlier allows local users to overwrite arbitrary files during archive extraction via a tar file whose filenames contain a .. (dot dot).

Vulnerability in Mailman 2.0.1 and earlier allows list administrators to obtain user passwords.

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.

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.

GNU ed before 0.2-18.1 allows local users to overwrite the files of other users via a symlink attack.

GnuPG (gpg) 1.0.3 does not properly check all signatures of a file containing multiple documents, which allows an attacker to modify contents of all documents but the first without detection.

Format string vulnerability in cfd daemon in GNU CFEngine before 1.6.0a11 allows attackers to execute arbitrary commands via format characters in the CAUTH command.

GNU Groff uses the current working directory to find a device description file, which allows a local user to gain additional privileges by including a malicious postpro directive in the description file, which is executed when another user runs groff.

Buffer overflow in ncurses library allows local users to execute arbitrary commands via long environmental information such as TERM or TERMINFO_DIRS.

glibc2 does not properly clear the LD_DEBUG_OUTPUT and LD_DEBUG environmental variables when a program is spawned from a setuid program, which could allow local users to overwrite files via a symlink attack.

Mailman 1.1 allows list administrators to execute arbitrary commands via shell metacharacters in the %(listname) macro expansion.

The -ftrapv compiler option in gcc and g++ 3.3.3 and earlier does not handle all types of integer overflows, which may leave applications vulnerable to vulnerabilities related to overflows.

GNU userv 1.0.0 and earlier does not properly perform file descriptor swapping, which can corrupt the USERV_GROUPS and USERV_GIDS environmental variables and allow local users to bypass some access restrictions.

The wrapper program in mailman 2.0beta3 and 2.0beta4 does not properly cleanse untrusted format strings, which allows local users to gain privileges.

The resolver in glibc 2.1.3 uses predictable IDs, which allows a local attacker to spoof DNS query results.

The make-temp-name Lisp function in Emacs 20 creates temporary files with predictable names, which allows attackers to conduct a symlink attack.

read-passwd and other Lisp functions in Emacs 20 do not properly clear the history of recently typed keys, which allows an attacker to read unencrypted passwords.

Emacs 20 does not properly set permissions for a slave PTY device when starting a new subprocess, which allows local users to read or modify communications between Emacs and the subprocess.

GNU make follows symlinks when it reads a Makefile from stdin, which allows other local users to execute commands.

The Guile plugin for the Gnumeric spreadsheet package allows attackers to execute arbitrary code.

GNU fingerd 1.37 does not properly drop privileges before accessing user information, which could allow local users to (1) gain root privileges via a malicious program in the .fingerrc file, or (2) read arbitrary files via symbolic links from .plan, .forward, or .project files.

screen and rxvt in Red Hat Linux 6.0 do not properly set the modes of tty devices, which allows local users to write to other ttys.

wget 1.5.3 follows symlinks to change permissions of the target file instead of the symlink itself.

FTP servers can allow an attacker to connect to arbitrary ports on machines other than the FTP client, aka FTP bounce.

Denial of service of inetd on Linux through SYN and RST packets.

The Perl fingerd program allows arbitrary command execution from remote users.

The GNU tar command, when used in FTP sessions, may allow an attacker to execute arbitrary commands.

(1) bash before 1.14.7, and (2) tcsh 6.05 allow local users to gain privileges via directory names that contain shell metacharacters (` back-tick), which can cause the commands enclosed in the directory name to be executed when the shell expands filenames using the \w option in…

cpio on FreeBSD 2.1.0, Debian GNU/Linux 3.0, and possibly other operating systems, uses a 0 umask when creating files using the -O (archive) or -F options, which creates the files with mode 0666 and allows local users to read or overwrite those files.