CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2017-15116 – kernel: Null pointer dereference in rngapi_reset function
https://notcve.org/view.php?id=CVE-2017-15116
The rngapi_reset function in crypto/rng.c in the Linux kernel before 4.2 allows attackers to cause a denial of service (NULL pointer dereference). La función rngapi_reset en crypto/rng.c en el kernel de Linux en versiones anteriores a la 4.2 permite que atacantes provoquen una denegación de servicio (desreferencia de puntero NULL). A flaw was found in the Linux kernel's random number generator API. A null pointer dereference in the rngapi_reset function may result in denial of service, crashing the system. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=94f1bb15bed84ad6c893916b7e7b9db6f1d7eec6 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://bugzilla.redhat.com/show_bug.cgi?id=1485815 https://bugzilla.redhat.com/show_bug.cgi?id=1514609 https://github.com/torvalds/linux/commit/94f1bb15bed84ad6c893916b7e7b9db6f1d7eec6 https://access.redhat.com/security/cve/CVE-2017-15116 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2017-17052
https://notcve.org/view.php?id=CVE-2017-17052
The mm_init function in kernel/fork.c in the Linux kernel before 4.12.10 does not clear the ->exe_file member of a new process's mm_struct, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a specially crafted program. La función mm_init en kernel/fork.c en el kernel de Linux en versiones anteriores a la 4.12.10 no elimina el miembro ->exe_file del mm_struct de un nuevo proceso. Esto permite que un atacante local logre un uso de memoria previamente liberada o que, posiblemente, tenga otro impacto sin especificar ejecutando un programa especialmente manipulado. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2b7e8665b4ff51c034c55df3cff76518d1a9ee3a http://www.securityfocus.com/bid/102009 https://github.com/torvalds/linux/commit/2b7e8665b4ff51c034c55df3cff76518d1a9ee3a https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10 • CWE-416: Use After Free •
CVSS: 7.0EPSS: 0%CPEs: 3EXPL: 0CVE-2017-17053
https://notcve.org/view.php?id=CVE-2017-17053
The init_new_context function in arch/x86/include/asm/mmu_context.h in the Linux kernel before 4.12.10 does not correctly handle errors from LDT table allocation when forking a new process, allowing a local attacker to achieve a use-after-free or possibly have unspecified other impact by running a specially crafted program. This vulnerability only affected kernels built with CONFIG_MODIFY_LDT_SYSCALL=y. La función init_new_context en arch/x86/include/asm/mmu_context.h en el kernel de Linux en versiones anteriores a la 4.12.10 no gestiona errores de asignación de tablas LDT al bifurcar un nuevo proceso. Esto permite que un atacante local logre un uso de memoria previamente liberada o que, posiblemente, tenga otro impacto sin especificar ejecutando un programa especialmente manipulado. Esta vulnerabilidad solo afecta a los kernels construidos con CONFIG_MODIFY_LDT_SYSCALL=y. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ccd5b3235180eef3cfec337df1c8554ab151b5cc http://www.securityfocus.com/bid/102010 https://access.redhat.com/errata/RHSA-2018:0676 https://github.com/torvalds/linux/commit/ccd5b3235180eef3cfec337df1c8554ab151b5cc https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.10 • CWE-416: Use After Free •
CVSS: 8.1EPSS: 0%CPEs: 8EXPL: 2CVE-2017-16939 – Linux Kernel (Ubuntu 17.04) - 'XFRM' Local Privilege Escalation
https://notcve.org/view.php?id=CVE-2017-16939
The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages. La implementación de políticas de volcado XFRM en net/xfrm/xfrm_user.c en el kernel de Linux en versiones anteriores a la 4.13.11 permite que usuarios locales obtengan privilegios o provoquen una denegación de servicio (uso de memoria previamente liberada) mediante una llamada del sistema a setsockopt con la opción SO_RCVBUF junto con mensajes Netlink XFRM_MSG_GETPOLICY. The Linux kernel is vulerable to a use-after-free flaw when Transformation User configuration interface(CONFIG_XFRM_USER) compile-time configuration were enabled. This vulnerability occurs while closing a xfrm netlink socket in xfrm_dump_policy_done. A user/process could abuse this flaw to potentially escalate their privileges on a system. • https://www.exploit-db.com/exploits/44049 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1137b5e2529a8f5ca8ee709288ecba3e68044df2 http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html http://seclists.org/fulldisclosure/2017/Nov/40 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 http://www.securityfocus.com/bid/101954 https://access.redhat.com/errata/RHSA-2018:1318 https://access.redhat.com/errata/RHSA-2018:1355 https:/ • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2017-12193 – kernel: Null pointer dereference due to incorrect node-splitting in assoc_array implementation
https://notcve.org/view.php?id=CVE-2017-12193
The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations. La función assoc_array_insert_into_terminal_node en lib/assoc_array.c en el kernel de Linux en versiones anteriores a la 4.13.11 gestiona de manera incorrecta la división de nodos, lo que permite que usuarios locales provoquen una denegación de servicio (desreferencia de puntero NULL y pánico) mediante una aplicación manipulada, tal y como demuestra el tipo de clave de conjunto de claves, así como las operaciones de suma de claves y creación de enlaces. A flaw was found in the Linux kernel's implementation of associative arrays introduced in 3.13. This functionality was backported to the 3.10 kernels in Red Hat Enterprise Linux 7. The flaw involved a null pointer dereference in assoc_array_apply_edit() due to incorrect node-splitting in assoc_array implementation. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ea6789980fdaa610d7eb63602c746bf6ec70cd2b http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.11 http://www.securityfocus.com/bid/101678 https://access.redhat.com/errata/RHSA-2018:0151 https://bugzilla.redhat.com/show_bug.cgi?id=1501215 https://github.com/torvalds/linux/commit/ea6789980fdaa610d7eb63602c746bf6ec70cd2b https://usn.ubuntu.com/3698-1 https://usn.ubuntu.com/3698-2 https://access.redhat.com/secu • CWE-476: NULL Pointer Dereference •