lsh daemon (lshd) does not properly return from certain functions in (1) read_line.c, (2) channel_commands.c, or (3) client_keyexchange.c when long input is provided, which could allow remote attackers to execute arbitrary code via a heap-based buffer overflow attack.

security flaw

Race condition in cpio 2.6 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by cpio after the decompression is complete.

security flaw

Format string vulnerability in Gnu Privacy Guard (aka GnuPG or gpg) 1.05 and earlier can allow an attacker to gain privileges via format strings in the original filename that is stored in an encrypted file.

Race condition in Core Utilities (coreutils) 5.2.1, when (1) mkdir, (2) mknod, or (3) mkfifo is running with the -m switch, allows local users to modify permissions of other files.

security flaw

The vty layer in Quagga before 0.96.4, and Zebra 0.93b and earlier, does not verify that sub-negotiation is taking place when processing the SE marker, which allows remote attackers to cause a denial of service (crash) via a malformed telnet command to the telnet CLI port, which may trigger a null dereference.

security flaw

unshar (unshar.c) in sharutils 4.2.1 allows local users to overwrite arbitrary files via a symlink attack on the unsh.X temporary file.

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

security flaw

Race condition in gzip 1.2.4, 1.3.3, and earlier, when decompressing a gzipped file, allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by gzip after the decompression is complete.

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

gzip: symlink attack on temporary files leads to arbitrary file overwrite

znew in the gzip package allows local users to overwrite arbitrary files via a symlink attack on temporary files.

security flaw

zgrep in gzip before 1.3.5 does not properly sanitize arguments, which allows local users to execute arbitrary commands via filenames that are injected into a sed script.

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

GNU cflow Lexer c.c yylex buffer overflow

A vulnerability, which was classified as critical, has been found in GNU cflow up to 1.8. Affected by this issue is the function yylex of the file c.c of the component Lexer. The manipulation leads to buffer overflow. Local access is required to approach this attack. The exploit has been disclosed to the public and may be used.

GNU cflow Lexer c.c yylex null pointer dereference

A vulnerability classified as problematic was found in GNU cflow up to 1.8. Affected by this vulnerability is the function yylex of the file c.c of the component Lexer. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

glibc: Double free in glibc

The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if some previous allocation fails. It can be accomplished either by a malloc failure or by using an interposed malloc that injects random malloc failures. The double free can allow buffer manipulation depending of how the regex is constructed. This issue affects all architectures and ABIs supported by the GNU C library.

GNU PSPP pspp-convert.c parse_variables_option free of memory not on the heap

A vulnerability classified as critical was found in GNU PSPP 82fb509fb2fedd33e7ac0c46ca99e108bb3bdffb. Affected by this vulnerability is the function parse_variables_option of the file utilities/pspp-convert.c. The manipulation leads to free of memory not on the heap. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

In guix-daemon in GNU Guix before 1618ca7, a content-addressed-mirrors file can be written to create a setuid program that allows a regular user to gain the privileges of the build user that runs it (even after the build has ended).

GNU PSPP pspp-convert.c parse_variables_option out-of-bounds write

A vulnerability classified as critical has been found in GNU PSPP 82fb509fb2fedd33e7ac0c46ca99e108bb3bdffb. Affected is the function parse_variables_option of the file utilities/pspp-convert.c. The manipulation leads to out-of-bounds write. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used.

A race condition in the Nix, Lix, and Guix package managers enables changing the ownership of arbitrary files to the UID and GID of the build user (e.g., nixbld* or guixbuild*). This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.

Screen creates by default world-writable PTYs

The default mode of pseudo terminals (PTYs) allocated by Screen was changed from 0620 to 0622, thereby allowing anyone to write to any Screen PTYs in the system.