CVSS: 2.1EPSS: 0%CPEs: 11EXPL: 1CVE-2011-2495 – kernel: /proc/PID/io infoleak
https://notcve.org/view.php?id=CVE-2011-2495
fs/proc/base.c in the Linux kernel before 2.6.39.4 does not properly restrict access to /proc/#####/io files, which allows local users to obtain sensitive I/O statistics by polling a file, as demonstrated by discovering the length of another user's password. fs/proc/base.c del kernel de Linux en versiones anteriores a la 2.6.39.4 no restringe el acceso apropiadamente a los archivos /proc/#####/io, lo que facilita a usuarios locales obtener estadísticas sobre I/O confidenciales consultando un archivo, como se ha demostrado descubriendo la lengitud de la contraseña de otro usuario. • http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.4 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d1221f375c94ef961ba8574ac4f85c8870ddd51 http://rhn.redhat.com/errata/RHSA-2011-1212.html http://www.openwall.com/lists/oss-security/2011/06/27/1 https://bugzilla.redhat.com/show_bug.cgi?id=716825 https://github.com/torvalds/linux/commit/1d1221f375c94ef961ba8574ac4f85c8870ddd51 https://access.redhat.com/security/cve/CVE-2011-2495 • CWE-264: Permissions, Privileges, and Access Controls •
CVSS: 4.7EPSS: 0%CPEs: 10EXPL: 1CVE-2011-2183 – Linux Kernel 2.6.x - KSM Local Denial of Service
https://notcve.org/view.php?id=CVE-2011-2183
Race condition in the scan_get_next_rmap_item function in mm/ksm.c in the Linux kernel before 2.6.39.3, when Kernel SamePage Merging (KSM) is enabled, allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a crafted application. Condición de carrera en la función scan_get_next_rmap_item de mm/ksm.c del kernel de Linux en versiones anteriores a la 2.6.39.3, si "Kernel SamePage Merging" (KSM) está habilitado, permite a usuarios locales provocar una denegación de servicio (Resolución de puntero NULL) o posiblemente tener otros impactos sin especificar a través de una aplicación modificada. • https://www.exploit-db.com/exploits/35820 http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.3 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2b472611a32a72f4a118c069c2d62a1a3f087afd http://www.openwall.com/lists/oss-security/2011/06/06/1 https://bugzilla.redhat.com/show_bug.cgi?id=710338 https://github.com/torvalds/linux/commit/2b472611a32a72f4a118c069c2d62a1a3f087afd https://access.redhat.com/security/cve/CVE-2011-2183 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 2.1EPSS: 0%CPEs: 17EXPL: 1CVE-2011-2493
https://notcve.org/view.php?id=CVE-2011-2493
The ext4_fill_super function in fs/ext4/super.c in the Linux kernel before 2.6.39 does not properly initialize a certain error-report data structure, which allows local users to cause a denial of service (OOPS) by attempting to mount a crafted ext4 filesystem. La función ext4_fill_super de fs/ext4/super.c del kernel de Linux en versiones anteriores a la 2.6.39 no inicializa apropiadamente una determinada estructura de datos de error-report. Lo que permite a usuarios locales provocar una denegación de servicio (OOPS) tratando de montar un sistema de archivos ext4 modificado. • http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0449641130f5652b344ef6fa39fa019d7e94660a http://www.openwall.com/lists/oss-security/2011/06/24/4 https://github.com/torvalds/linux/commit/0449641130f5652b344ef6fa39fa019d7e94660a •
CVSS: 4.9EPSS: 0%CPEs: 4EXPL: 5CVE-2011-2928
https://notcve.org/view.php?id=CVE-2011-2928
The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem. La función befs_follow_link en fs/befs/linuxvfs.c en el Kernel de Linux anterior a v 3.1-rc3 no valida el atributo longitud de enlaces simbólicos, lo que permite a usuarios locales provocar una denegación de servicio (desreferencia a puntero incorrecta y OOPS) accediendo a un largo enlace simbólico en un fichero de sistema mal formados. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=338d0f0a6fbc82407864606f5b64b75aeb3c70f2 http://securityreason.com/securityalert/8360 http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.1-rc3 http://www.openwall.com/lists/oss-security/2011/08/19/1 http://www.openwall.com/lists/oss-security/2011/08/19/5 http://www.pre-cert.de/advisories/PRE-SA-2011-06.txt http://www.securityfocus.com/archive/1/519387/100/0/threaded http:/ • CWE-476: NULL Pointer Dereference •
CVSS: 3.3EPSS: 0%CPEs: 51EXPL: 1CVE-2011-1833 – kernel: ecryptfs: mount source TOCTOU race
https://notcve.org/view.php?id=CVE-2011-1833
Race condition in the ecryptfs_mount function in fs/ecryptfs/main.c in the eCryptfs subsystem in the Linux kernel before 3.1 allows local users to bypass intended file permissions via a mount.ecryptfs_private mount with a mismatched uid. Condición de carrera en la función ecryptfs_mount en fs/ecryptfs/main.c en el subsistema eCryptfs en el Kernel de Linux anteriores a v3.1 permite a usuarios locales evitar los permisos de ficheros impuestos a través de montar una unidad con mount.ecryptfs_private con un uid que no coincide. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=764355487ea220fdc2faf128d577d7f679b91f97 http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00009.html http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 http://www.ubuntu.com/usn/USN-1188-1 https://bugzilla.redhat.com/show_bug.cgi?id=731172 https://github.com/torvalds/linux/commit/764355487ea220fdc2faf128d577d7f679b91f97 https://access.redhat.com/security/cve/CVE-2011-1833 • CWE-264: Permissions, Privileges, and Access Controls CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition •