CVSS: 7.8EPSS: 81%CPEs: 41EXPL: 32CVE-2016-5195 – Linux Kernel Race Condition Vulnerability
https://notcve.org/view.php?id=CVE-2016-5195
Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect handling of a copy-on-write (COW) feature to write to a read-only memory mapping, as exploited in the wild in October 2016, aka "Dirty COW." La condición de carrera en mm / gup.c en el kernel de Linux 2.x a 4.x antes de 4.8.3 permite a los usuarios locales obtener privilegios aprovechando el manejo incorrecto de una función copy-on-write (COW) para escribir en un read- only la cartografía de la memoria, como explotados en la naturaleza en octubre de 2016, vulnerabilidad también conocida como "Dirty COW". A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged, local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system. Race condition in mm/gup.c in the Linux kernel allows local users to escalate privileges. • https://github.com/dirtycow/dirtycow.github.io https://www.exploit-db.com/exploits/40611 https://www.exploit-db.com/exploits/40838 https://www.exploit-db.com/exploits/40616 https://www.exploit-db.com/exploits/40839 https://www.exploit-db.com/exploits/40847 https://github.com/timwr/CVE-2016-5195 https://github.com/gbonacini/CVE-2016-5195 https://github.com/whu-enjoy/CVE-2016-5195 https://github.com/jas502n/CVE-2016-5195 https://github.com/arttnba3/CVE-2016- • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2016-8660
https://notcve.org/view.php?id=CVE-2016-8660
The XFS subsystem in the Linux kernel through 4.8.2 allows local users to cause a denial of service (fdatasync failure and system hang) by using the vfs syscall group in the trinity program, related to a "page lock order bug in the XFS seek hole/data implementation." El subsistema XFS en el kernel de Linux hasta la versión 4.8.2 permite a usuarios locales provocar una denegación de servicio (fallo fdatasync y cuelgue del sistema) usando el grupo de llamada al sistema vfs en el programa trinity, relacionado con un "error de orden de página de bloqueo en la búsqueda XFS en implementación hole/data". • http://www.openwall.com/lists/oss-security/2016/10/13/8 http://www.securityfocus.com/bid/93558 https://bugzilla.redhat.com/show_bug.cgi?id=1384851 • CWE-19: Data Processing Errors •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2015-8952
https://notcve.org/view.php?id=CVE-2015-8952
The mbcache feature in the ext2 and ext4 filesystem implementations in the Linux kernel before 4.6 mishandles xattr block caching, which allows local users to cause a denial of service (soft lockup) via filesystem operations in environments that use many attributes, as demonstrated by Ceph and Samba. La funcionalidad mbcache en las implementaciones del sistema de archivos ext2 y ext4 en el kernel de Linux en versiones anteriores a 4.6 no maneja adecuadamente bloque de almacenamiento en caché xattr, lo que permite a usuarios locales provocar una denegación de servicio (bloqueo débil) a través de operaciones de sistema de archivos en entornos que usan muchos atributos, como se demuestra por Ceph y Samba. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82939d7999dfc1f1998c4b1c12e2f19edbdff272 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=be0726d33cb8f411945884664924bed3cb8c70ee http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9a61eb4e2471c56a63cd804c7474128138c38ac http://www.openwall.com/lists/oss-security/2016/08/22/2 http://www.openwall.com/lists/oss-security/2016/08/25/4 https://bugzilla.kernel.org/show_bug.cgi?id=10 • CWE-19: Data Processing Errors •
CVSS: 7.8EPSS: 8%CPEs: 5EXPL: 0CVE-2016-8666 – kernel: Remotely triggerable recursion in GRE code leading to kernel crash
https://notcve.org/view.php?id=CVE-2016-8666
The IP stack in the Linux kernel before 4.6 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for packets with tunnel stacking, as demonstrated by interleaved IPv4 headers and GRE headers, a related issue to CVE-2016-7039. La pila IP en el kernel de Linux en versiones anteriores a 4.6 permite a atacantes remotos provocar una denegación de servicio (consumo de pila y pánico) o tener otro posible impacto no especificado desencadenando uso de la ruta GRO para paquetes con apilamiento en túnel, como se demuestra por cabeceras IPv4 y cabeceras GRE intercaladas, un problema relacionado con CVE-2016-7039. A flaw was found in the way the Linux kernel's networking subsystem handled offloaded packets with multiple layers of encapsulation in the GRO (Generic Receive Offload) code path. A remote attacker could use this flaw to trigger unbounded recursion in the kernel that could lead to stack corruption, resulting in a system crash. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fac8e0f579695a3ecbc4d3cac369139d7f819971 http://rhn.redhat.com/errata/RHSA-2016-2047.html http://rhn.redhat.com/errata/RHSA-2016-2107.html http://rhn.redhat.com/errata/RHSA-2016-2110.html http://rhn.redhat.com/errata/RHSA-2017-0004.html http://www.openwall.com/lists/oss-security/2016/10/13/11 http://www.securityfocus.com/bid/93562 https://access.redhat.com/errata/RHSA-2017:0372 https://bto.bluec • CWE-400: Uncontrolled Resource Consumption CWE-674: Uncontrolled Recursion •
CVSS: 6.1EPSS: 0%CPEs: 1EXPL: 0CVE-2016-8658
https://notcve.org/view.php?id=CVE-2016-8658
Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.7.5 allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket. Desbordamiento de búfer basado en pila en la función brcmf_cfg80211_start_ap en drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c en el kernel de Linux en versiones anteriores a 4.7.5 permite a usuarios locales provocar una denegación de servicio (caída de sistema) o tener otro posible impacto no especificado a través de un SSID Information Element largo en un comando a un socket Netlink. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ded89912156b1a47d940a0c954c43afbabd0c42c http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5 http://www.openwall.com/lists/oss-security/2016/10/13/1 http://www.securityfocus.com/bid/93541 http://www.ubuntu.com/usn/USN-3145-1 http://www.ubuntu.com/usn/USN-3145-2 http://www.ubuntu.com/usn/USN-3146-1 http://www.ubuntu.com/usn/USN-3146-2 https://bugzilla.redhat.com/show_b • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •