CVSS: 5.1EPSS: 0%CPEs: 10EXPL: 0CVE-2015-8839 – kernel: ext4 filesystem page fault race condition with fallocate call.
https://notcve.org/view.php?id=CVE-2015-8839
Multiple race conditions in the ext4 filesystem implementation in the Linux kernel before 4.5 allow local users to cause a denial of service (disk corruption) by writing to a page that is associated with a different user's file after unsynchronized hole punching and page-fault handling. Múltiples condiciones de carrera en la implementación del sistema de archivos ext4 en el kernel de Linux en versiones anteriores a 4.5 permite a usuarios locales provocar una denegación de servicio (corrupción de disco) escribiendo a una página que está asociada con un archivo de usuario diferente después del manejo de hole punching desincronizado y de fallo de página. A flaw was found in the Linux kernel when attempting to "punch a hole" in files existing on an ext4 filesystem. When punching holes into a file races with the page fault of the same area, it is possible that freed blocks remain referenced from page cache pages mapped to process' address space. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea3d7209ca01da209cda6f0dea8be9cc4b7a933b http://www.openwall.com/lists/oss-security/2016/04/01/4 http://www.securityfocus.com/bid/85798 http://www.securitytracker.com/id/1035455 http://www.ubuntu.com/usn/USN-3005-1 http://www.ubuntu.com/usn/USN-3006-1 http://www.ubuntu.com/usn/USN-3007-1 https://access.redhat.com/errata/RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:2077 https:& • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2015-2672
https://notcve.org/view.php?id=CVE-2015-2672
The xsave/xrstor implementation in arch/x86/include/asm/xsave.h in the Linux kernel before 3.19.2 creates certain .altinstr_replacement pointers and consequently does not provide any protection against instruction faulting, which allows local users to cause a denial of service (panic) by triggering a fault, as demonstrated by an unaligned memory operand or a non-canonical address memory operand. La implementación de xsave/xrstor en arch/x86/include/asm/xsave.h en el kernel de Linux en versiones anteriores a 3.19.2 crea determinados punteros .altinstr_replacement y consecuentemente no provee ninguna protección contra fallo de instrucciones, lo que permite a usuarios locales provocar una denegación de servicio (pánico) desencadenando un fallo, según lo demostrado por un operando de memoria no alineada o un operando de dirección de memoria no canónico. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=06c8173eb92bbfc03a0fe8bb64315857d0badd06 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2 http://www.openwall.com/lists/oss-security/2015/03/22/1 https://bugzilla.redhat.com/show_bug.cgi?id=1204729 https://github.com/torvalds/linux/commit/06c8173eb92bbfc03a0fe8bb64315857d0badd06 • CWE-20: Improper Input Validation •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2012-6689 – libmnl: incorrect validation of netlink message origin allows attackers to spoof netlink messages
https://notcve.org/view.php?id=CVE-2012-6689
The netlink_sendmsg function in net/netlink/af_netlink.c in the Linux kernel before 3.5.5 does not validate the dst_pid field, which allows local users to have an unspecified impact by spoofing Netlink messages. La función netlink_sendmsg en net/netlink/af_netlink.c en el kernel de Linux en versiones anteriores a 3.5.5 no valida el campo dst_pid, lo que permite a usuarios locales tener un impacto no especificado suplantando mensajes Netlink. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=20e1db19db5d6b9e4e83021595eab0dc8f107bef http://marc.info/?l=linux-netdev&m=134522422125983&w=2 http://marc.info/?l=linux-netdev&m=134522422925986&w=2 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.5 http://www.openwall.com/lists/oss-security/2015/02/22/10 http://www.securityfocus.com/bid/72739 https://bugzilla.redhat.com/show_bug.cgi?id=848949 https://github.com/torvalds/linux/com • CWE-284: Improper Access Control •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2015-4178
https://notcve.org/view.php?id=CVE-2015-4178
The fs_pin implementation in the Linux kernel before 4.0.5 does not ensure the internal consistency of a certain list data structure, which allows local users to cause a denial of service (system crash) by leveraging user-namespace root access for an MNT_DETACH umount2 system call, related to fs/fs_pin.c and include/linux/fs_pin.h. La implementación de fs_pin en el kernel de Linux en versiones anteriores a 4.0.5 no asegura la consistencia interna de una determinada estructura de datos de lista, lo que permite a usuarios locales provocar una denegación de servicio (caída de sistema) aprovechando acceso root al espacio de nombres de usuario para una llamada de sistema MNT_DETACH umount2, relacionado con fs/fs_pin.c y include/linux/fs_pin.h. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=820f9f147dcce2602eefd9b575bbbd9ea14f0953 http://openwall.com/lists/oss-security/2015/05/29/10 http://openwall.com/lists/oss-security/2015/05/29/5 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.0.5 http://www.openwall.com/lists/oss-security/2015/06/04/5 https://bugzilla.redhat.com/show_bug.cgi?id=1249849 https://github.com/torvalds/linux/commit/820f9f147dcce2602eefd9b575bbbd9ea14f0953 •
CVSS: 4.9EPSS: 0%CPEs: 1EXPL: 0CVE-2015-8324 – kernel: Null pointer dereference when mounting ext4
https://notcve.org/view.php?id=CVE-2015-8324
The ext4 implementation in the Linux kernel before 2.6.34 does not properly track the initialization of certain data structures, which allows physically proximate attackers to cause a denial of service (NULL pointer dereference and panic) via a crafted USB device, related to the ext4_fill_super function. La implementación de ext4 en el kernel de Linux en versiones anteriores a 2.6.34 no rastrea correctamente la inicalización de determinadas estructuras de datos, lo que permite a atacantes físicamente próximos provocar una denegación de servicio (referencia a puntero NULL y pánico) a través de un dispositivo USB manipulado, relacionado con la función ext4_fill_super. A NULL pointer dereference flaw was found in the way the Linux kernel's ext4 file system driver handled certain corrupted file system images. An attacker with physical access to the system could use this flaw to crash the system. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=744692dc059845b2a3022119871846e74d4f6e11 http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.34 http://rhn.redhat.com/errata/RHSA-2016-0855.html http://www.openwall.com/lists/oss-security/2015/11/23/2 http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html https://bugzilla.redhat.com/show_bug.cgi?id=1267261 https://github.com/torvalds/linux/commit/744692dc059845b2a3022119871846e74d4f6e11 https • CWE-476: NULL Pointer Dereference •