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CVSS: 4.9EPSS: 0%CPEs: 4EXPL: 5

CVE-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: 1

CVE-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 •

CVSS: 4.9EPSS: 0%CPEs: 6EXPL: 1

CVE-2011-2695 – kernel: ext4: kernel panic when writing data to the last block of sparse file

https://notcve.org/view.php?id=CVE-2011-2695

Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer. Múltiples errores off-by-one en el subsistema de ext4 en el kernel de Linux antes de v3.0-rc5, permite a usuarios locales provocar una denegación de servicio (BUG_ON y caída del sistema) por acceder a un archivo disperso en el formato de medida con una operación de escritura con un número de bloque correspondiente al mayor número posible de un entero de 32 bits sin signo. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f17722f917b2f21497deb6edc62fb1683daa08e6 http://secunia.com/advisories/45193 http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc5 http://www.openwall.com/lists/oss-security/2011/07/15/7 http://www.openwall.com/lists/oss-security/2011/07/15/8 http://www.spinics.net/lists/linux-ext4/msg25697.html https://bugzilla.redhat.com/show_bug.cgi?id=722557 https://access.redhat.com&# • CWE-193: Off-by-one Error •

CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0

CVE-2011-2525 – kernel: kernel: net_sched: fix qdisc_notify()

https://notcve.org/view.php?id=CVE-2011-2525

The qdisc_notify function in net/sched/sch_api.c in the Linux kernel before 2.6.35 does not prevent tc_fill_qdisc function calls referencing builtin (aka CQ_F_BUILTIN) Qdisc structures, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via a crafted call. La función qdisc_notify de net/sched/sch_api.c del kernel de Linux en versiones anteriores a la 2.6.35 no previene que la función tc_fill_qdisc haga referencia a estructuras Qdisc (CQ_F_BUILTIN) pre-construídas, lo que permite a usuarios locales provocar una denegación de servicio (resolución de puntero NULL y OOPS) o posiblemente tener otros impactos sin especificar a través de una llamada modificada. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=53b0f08042f04813cd1a7473dacd3edfacb28eb3 http://kerneltrap.org/mailarchive/linux-netdev/2010/5/21/6277805 http://mirror.anl.gov/pub/linux/kernel/v2.6/ChangeLog-2.6.35 http://openwall.com/lists/oss-security/2011/07/12/1 http://rhn.redhat.com/errata/RHSA-2011-1065.html http://rhn.redhat.com/errata/RHSA-2011-1163.html https://bugzilla.redhat.com/show_bug.cgi?id=720552 https://access.redhat. • CWE-476: NULL Pointer Dereference •

CVSS: 4.9EPSS: 0%CPEs: 6EXPL: 0

CVE-2011-2689 – kernel: gfs2: make sure fallocate bytes is a multiple of blksize

https://notcve.org/view.php?id=CVE-2011-2689

The gfs2_fallocate function in fs/gfs2/file.c in the Linux kernel before 3.0-rc1 does not ensure that the size of a chunk allocation is a multiple of the block size, which allows local users to cause a denial of service (BUG and system crash) by arranging for all resource groups to have too little free space. La función gfs2_fallocate en fs/gfs2/file.c en el kernel de Linux anterior a v3.0-rc1 no garantiza que el tamaño de un trozo de asignación sea un múltiplo del tamaño de bloque, lo que permite a usuarios locales provocar una denegación de servicio (BUG y caída del sistema) mediante la organización de todos los grupos de recursos para tener un espacio libre muy reducido. • http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=6905d9e4dda6112f007e9090bca80507da158e63 http://marc.info/?l=bugtraq&m=139447903326211&w=2 http://rhn.redhat.com/errata/RHSA-2011-1065.html http://secunia.com/advisories/45193 http://securitytracker.com/id?1025776 http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc1 http://www.openwall.com/lists/oss-security/2011/07/13/1 http://www.securityfocus.com/bid/48677 https://bu • CWE-400: Uncontrolled Resource Consumption •