CVSS: 5.9EPSS: 0%CPEs: 1EXPL: 0CVE-2018-1065 – kernel: netfilter: xtables NULL pointer dereference in ip6_tables.c:ip6t_do_table() leading to a crash
https://notcve.org/view.php?id=CVE-2018-1065
The netfilter subsystem in the Linux kernel through 4.15.7 mishandles the case of a rule blob that contains a jump but lacks a user-defined chain, which allows local users to cause a denial of service (NULL pointer dereference) by leveraging the CAP_NET_RAW or CAP_NET_ADMIN capability, related to arpt_do_table in net/ipv4/netfilter/arp_tables.c, ipt_do_table in net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in net/ipv6/netfilter/ip6_tables.c. El subsistema netfilter en el kernel de Linux, hasta la versión 4.15.7, gestiona de manera incorrecta el caso de una regla blob que contiene un salto pero carece de una cadena definida por el usuario. Esto permite que usuarios locales provoquen una denegación de servicio (DoS) aprovechando las capacidades CAP_NET_RAW o CAP_NET_ADMIN, relacionadas con arpt_do_table en net/ipv4/netfilter/arp_tables.c, ipt_do_table en net/ipv4/netfilter/ip_tables.c y ip6t_do_table en net/ipv6/netfilter/ip6_tables.c. A flaw was found in the netfilter/iptables subsystem. A user with the netfilter modification capabilities could insert a rule which could panic the system. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=57ebd808a97d7c5b1e1afb937c2db22beba3c1f8 http://lists.openwall.net/netdev/2018/01/27/46 http://patchwork.ozlabs.org/patch/870355 http://www.securitytracker.com/id/1040446 https://access.redhat.com/errata/RHSA-2018:2948 https://bugzilla.redhat.com/show_bug.cgi?id=1547824 https://github.com/torvalds/linux/commit/57ebd808a97d7c5b1e1afb937c2db22beba3c1f8 https://usn.ubuntu.com/3654-1 https://usn.ubuntu.com/3654-2 https: • CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 12EXPL: 0CVE-2018-5803 – kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service
https://notcve.org/view.php?id=CVE-2018-5803
In the Linux Kernel before version 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51, and 3.2.102, an error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP packets length can be exploited to cause a kernel crash. En el kernel de Linux en versiones anteriores a la 4.15.8, 4.14.25, 4.9.87, 4.4.121, 4.1.51 y 3.2.102, un error en la función "_sctp_make_chunk()" (net/sctp/sm_make_chunk.c) al gestionar el tamaño de paquetes SCTP puede explotarse para provocar un cierre inesperado del kernel. An error in the "_sctp_make_chunk()" function (net/sctp/sm_make_chunk.c) when handling SCTP, packet length can be exploited by a malicious local user to cause a kernel crash and a DoS. • https://access.redhat.com/errata/RHSA-2018:1854 https://access.redhat.com/errata/RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2019:0641 https://cdn.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.102 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.51 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.25 https://cdn.kernel.org/p • CWE-20: Improper Input Validation •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2017-18208 – kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service
https://notcve.org/view.php?id=CVE-2017-18208
The madvise_willneed function in mm/madvise.c in the Linux kernel before 4.14.4 allows local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping. La función madvise_willneed en mm/madvise.c en el kernel de Linux, en versiones anteriores a la 4.14.4, permite que usuarios locales provoquen una denegación de servicio (bucle infinito) desencadenando el uso de MADVISE_WILLNEED para un mapeo DAX. The madvise_willneed function in the Linux kernel allows local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6ea8d958a2c95a1d514015d4e29ba21a8c0a1a91 https://access.redhat.com/errata/RHSA-2018:2948 https://access.redhat.com/errata/RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3096 https://access.redhat.com/errata/RHSA-2019:3967 https://access.redhat.com/errata/RHSA-2019:4057 https://access.redhat.com/errata/RHSA-2019:4058 https://github.com/torvalds/linux/commit/6ea8d958a2c95a1d514015d4e29ba21a8c0a1a91 https://usn.u • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 4.7EPSS: 0%CPEs: 1EXPL: 0CVE-2017-18203 – kernel: Race condition in drivers/md/dm.c:dm_get_from_kobject() allows local users to cause a denial of service
https://notcve.org/view.php?id=CVE-2017-18203
The dm_get_from_kobject function in drivers/md/dm.c in the Linux kernel before 4.14.3 allow local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices. La función dm_get_from_kobject en drivers/md/dm.c en el kernel de Linux, en versiones anteriores a la 4.14.3, permite que usuarios locales provoquen una denegación de servicio (bug) aprovechando una condición de carrera en __dm_destroy durante la creación y eliminación de dispositivos DM. The Linux kernel, before version 4.14.3, is vulnerable to a denial of service in drivers/md/dm.c:dm_get_from_kobject() which can be caused by local users leveraging a race condition with __dm_destroy() during creation and removal of DM devices. Only privileged local users (with CAP_SYS_ADMIN capability) can directly perform the ioctl operations for dm device creation and removal and this would typically be outside the direct control of the unprivileged attacker. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b9a41d21dceadf8104812626ef85dc56ee8a60ed http://www.securityfocus.com/bid/103184 https://access.redhat.com/errata/RHSA-2018:0676 https://access.redhat.com/errata/RHSA-2018:1062 https://access.redhat.com/errata/RHSA-2018:1854 https://access.redhat.com/errata/RHSA-2019:4154 https://github.com/torvalds/linux/commit/b9a41d21dceadf8104812626ef85dc56ee8a60ed https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html https: • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.0EPSS: 0%CPEs: 2EXPL: 0CVE-2017-18202 – kernel: Infoleak/use-after-free in __oom_reap_task_mm function in mm/oom_kill.c
https://notcve.org/view.php?id=CVE-2017-18202
The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel before 4.14.4 mishandles gather operations, which allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window. La función __oom_reap_task_mm en mm/oom_kill.c en el kernel de Linux, en versiones anteriores a la 4.14.4, gestiona de manera incorrecta las operaciones de recopilación. Esto permite que los atacantes provoquen una denegación de servicio (filtrado de entrada TLB o uso de memoria previamente liberada) u otro tipo de impacto sin especificar desencadenando una llamada copy_to_user en un periodo de tiempo determinado. The __oom_reap_task_mm function in mm/oom_kill.c in the Linux kernel, before 4.14.4, mishandles gather operations. This allows attackers to cause a denial of service (TLB entry leak or use-after-free) or possibly have unspecified other impact by triggering a copy_to_user call within a certain time window. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=687cb0884a714ff484d038e9190edc874edcf146 http://www.securityfocus.com/bid/103161 https://access.redhat.com/errata/RHSA-2018:2772 https://github.com/torvalds/linux/commit/687cb0884a714ff484d038e9190edc874edcf146 https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.4 https://access.redhat.com/security/cve/CVE-2017-18202 https://bugzilla.redhat.com/show_bug.cgi?id=1549621 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-416: Use After Free •