Vulnerabilidades

Una vulnerabilidad de "escritura en pila" en GnuPG (gpg) 1.x anterior a la 1.4.6, 2.x anterior a la 2.0.2 y 1.9.0 hasta la 1.9.95 permite a atacantes ejecutar código de su elección mediante paquetes OpenPGP artesanales que provocan que GnuPG haga referencia a un puntero a función que está en memoria (en la pila) que…

pam_ldap en nss_ldap sobre Red Hat Enterprise Linux 4, Fedora Core 3 y anteriores, y posiblemente otras distribuciones no devuelven una condición de error cuando un servidor de directorio LDAP responde con una respuesta de control PasswordPolicyResponse, lo cual provoca que la función pam_authenticate devuelva código…

El nlmclnt_mark_reclaim en clntlock.c en NFS lockd en el kernel de Linux en versiones anteriores a 2.6.16 permite a atacantes remotos provocar una denegación de servicio (caída de proceso) y denegación de acceso a exportaciones NFS a través de vectores no especificados que desencadenan un oops en el kernel (referencia…

kdesktop_lock en kdebase versiones anteriores a 3.1.3-5.11 para KDE en Red Hat Enterprise Linux (RHEL) 3 no termina apropiadamente, lo cual puede impedir que el salva-pantallas se active, o impedir que los usuarios bloqueen manualmente el escritorio.

Stack-based buffer overflow in the pam_micasa PAM authentication module in CASA on Novell Linux Desktop 9 and Open Enterprise Server 1 allows remote attackers to execute arbitrary code via unspecified vectors.

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.

Xpdf, as used in products such as gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others, allows attackers to cause a denial of service (infinite loop) via streams that end prematurely, as demonstrated using the (1) CCITTFaxDecode and (2) DCTDecode streams, aka "Infinite CPU spins."

The original patch for a GNU tar directory traversal vulnerability (CVE-2002-0399) in Red Hat Enterprise Linux 3 and 2.1 uses an "incorrect optimization" that allows user-assisted attackers to overwrite arbitrary files via a crafted tar file, probably involving "/../" sequences with a leading "/".

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.

udev does not properly set permissions on certain files in /dev/input, which allows local users to obtain sensitive data that is entered at the console, such as user passwords.

The rw_vm function in usercopy.c in the 4GB split patch for the Linux kernel in Red Hat Enterprise Linux 4 does not perform proper bounds checking, which allows local users to cause a denial of service (crash).

Memory leak in the worker MPM (worker.c) for Apache 2, in certain circumstances, allows remote attackers to cause a denial of service (memory consumption) via aborted connections, which prevents the memory for the transaction pool from being reused for other connections.

init_dev in tty_io.c in the Red Hat backport of NPTL to Red Hat Enterprise Linux 3 does not properly clear controlling tty's in multi-threaded applications, which allows local users to cause a denial of service (crash) and possibly gain tty access via unknown attack vectors that trigger an access of a pointer to a…

Error de fuera-por-uno en la retrollamda de verificación de Lista de Revocación de Certificados (CRL) de mod_ssl para Apache, cuando se configura para usar un CRL, permite a atacantes remotos causar una denegación de servicio (caída de proceso hijo) mediante una CRL que causa un desbordamiento de búfer de un byte nule.

Vulnerabilidad desconocida en el kernel de Linux permite que usuarios locales provoquen una denegación de servicio mediante ptrace

Vulnerabilidad desconocida en el kernel de Linux 2.6.x y 2.4.x permite que usuarios locales provoquen una denegación de servicio ("stack fault exception") mediante métodos desconocidos.

sysreport 1.3.15 and earlier includes contents of the up2date file in a report, which leaks the password for a proxy server in plaintext and allows local users to gain privileges.

Buffer overflow in ptrace in the Linux Kernel for 64-bit architectures allows local users to write bytes into kernel memory.

The xattr file system code, as backported in Red Hat Enterprise Linux 3 on 64-bit systems, does not properly handle certain offsets, which allows local users to cause a denial of service (system crash) via certain actions on an ext3 file system with extended attributes enabled.

Stack-based buffer overflow in the ieee_putascii function for nasm 0.98 and earlier allows attackers to execute arbitrary code via a crafted asm file, a different vulnerability than CVE-2004-1287.

Race condition in the page fault handler (fault.c) for Linux kernel 2.2.x to 2.2.7, 2.4 to 2.4.29, and 2.6 to 2.6.10, when running on multiprocessor machines, allows local users to execute arbitrary code via concurrent threads that share the same virtual memory space and simultaneously request stack expansion.

Unknown vulnerability in the Red Hat Enterprise Linux 4 kernel 4GB/4GB split patch, when using the hugemem kernel, allows local users to read and write to arbitrary kernel memory and gain privileges via certain syscalls.

Postfix 2.1.3, when /proc/net/if_inet6 is not available and permit_mx_backup is enabled in smtpd_recipient_restrictions, allows remote attackers to bypass e-mail restrictions and perform mail relaying by sending mail to an IPv6 hostname.

The KDE screen saver in KDE before 3.0.5 does not properly check the return value from a certain function call, which allows attackers with physical access to cause a crash and access the desktop session.

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.