CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2018-1118 – kernel: vhost: Information disclosure in vhost/vhost.c:vhost_new_msg()
https://notcve.org/view.php?id=CVE-2018-1118
Linux kernel vhost since version 4.8 does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. This can allow local privileged users to read some kernel memory contents when reading from the /dev/vhost-net device file. El vhost del kernel de Linux desde la versión 4.8 no inicializa correctamente la memoria en los mensajes que se pasan entre invitados virtuales y el sistema operativo host en la función vhost/vhost.c:vhost_new_msg(). Esto puede permitir que usuarios con privilegios locales lean el contenido de la memoria del kernel al leer del archivo de dispositivo /dev/vhost-net. The Linux kernel does not properly initialize memory in messages passed between virtual guests and the host operating system in the vhost/vhost.c:vhost_new_msg() function. • 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://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1118 https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html https://usn.ubuntu.com/3762-1 https://usn.ubuntu.com/3762-2 https://access.redhat.com/security/cve/CVE-2018-1118 https://bugzilla.redhat.com/show_bug.cgi?id=1573699 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-665: Improper Initialization •
CVSS: 5.5EPSS: 0%CPEs: 14EXPL: 0CVE-2018-1130 – kernel: a null pointer dereference in net/dccp/output.c:dccp_write_xmit() leads to a system crash
https://notcve.org/view.php?id=CVE-2018-1130
Linux kernel before version 4.16-rc7 is vulnerable to a null pointer dereference in dccp_write_xmit() function in net/dccp/output.c in that allows a local user to cause a denial of service by a number of certain crafted system calls. El kernel de Linux en versiones anteriores a la 4.16-rc7 es vulnerable a una desreferencia de puntero NULL en la función dccp_write_xmit() en net/dccp/output.c en la que un usuario local puede provocar una denegación de servicio mediante un número de llamadas del sistema manipuladas. A null pointer dereference in dccp_write_xmit() function in net/dccp/output.c in the Linux kernel allows a local user to cause a denial of service by a number of certain crafted system calls. • https://access.redhat.com/errata/RHSA-2018:1854 https://access.redhat.com/errata/RHSA-2018:3083 https://access.redhat.com/errata/RHSA-2018:3096 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1130 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=67f93df79aeefc3add4e4b31a752600f834236e2 https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html https://lists.debian.org/debian& • CWE-476: NULL Pointer Dereference •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0CVE-2018-10940 – kernel: incorrect memory bounds check in drivers/cdrom/cdrom.c
https://notcve.org/view.php?id=CVE-2018-10940
The cdrom_ioctl_media_changed function in drivers/cdrom/cdrom.c in the Linux kernel before 4.16.6 allows local attackers to use a incorrect bounds check in the CDROM driver CDROM_MEDIA_CHANGED ioctl to read out kernel memory. La función cdrom_ioctl_media_changed en drivers/cdrom/cdrom.c en el kernel de Linux en versiones anteriores a la 4.16.6 permite que atacantes locales empleen una comprobación de límites incorrecta en el ioctl CDROM_MEDIA_CHANGED del controlador CDROM para leer la memoria del kernel. A flaw was found in the Linux kernel, before 4.16.6 where the cdrom_ioctl_media_changed function in drivers/cdrom/cdrom.c allows local attackers to use a incorrect bounds check in the CDROM driver CDROM_MEDIA_CHANGED ioctl to read out kernel memory. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9de4ee40547fd315d4a0ed1dd15a2fa3559ad707 http://www.securityfocus.com/bid/104154 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://github.com/torvalds/linux/commit/9de4ee40547fd315d4a0ed1dd15a2fa3559ad707 https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html https://lists.debian.org/debian-lts-announce/2018/07/msg • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 8.0EPSS: 0%CPEs: 24EXPL: 0CVE-2018-1087 – Kernel: KVM: error in exception handling leads to wrong debug stack value
https://notcve.org/view.php?id=CVE-2018-1087
kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest. kernel KVM en versiones anteriores al kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 y kernel 4.17-rc3 es vulnerable a un error en la forma en la que el hipervisor KVM del kernel de Linux gestiona las excepciones lanzadas tras una operación de cambio de pila mediante instrucciones Mov SS o Pop SS. Durante la operación de cambio de pila, el procesador no lanzó interrupciones y excepciones, sino que las lanza una vez se ha ejecutado la primera instrucción tras el cambio de pila. Un usuario invitado sin privilegios de KVM podría usar este error para provocar el cierre inesperado del guest o escalar sus privilegios en el guest. • http://www.openwall.com/lists/oss-security/2018/05/08/5 http://www.securityfocus.com/bid/104127 http://www.securitytracker.com/id/1040862 https://access.redhat.com/errata/RHSA-2018:1318 https://access.redhat.com/errata/RHSA-2018:1345 https://access.redhat.com/errata/RHSA-2018:1347 https://access.redhat.com/errata/RHSA-2018:1348 https://access.redhat.com/errata/RHSA-2018:1355 https://access.redhat.com/errata/RHSA-2018:1524 https://access.redhat.com/security/vulnerabili • CWE-250: Execution with Unnecessary Privileges •
CVSS: 7.8EPSS: 0%CPEs: 23EXPL: 1CVE-2018-1000199 – kernel: ptrace() incorrect error handling leads to corruption and DoS
https://notcve.org/view.php?id=CVE-2018-1000199
The Linux Kernel version 3.18 contains a dangerous feature vulnerability in modify_user_hw_breakpoint() that can result in crash and possibly memory corruption. This attack appear to be exploitable via local code execution and the ability to use ptrace. This vulnerability appears to have been fixed in git commit f67b15037a7a50c57f72e69a6d59941ad90a0f0f. El kernel de Linux en su versión 3.18 contiene una vulnerabilidad de funcionalidad peligrosa en modify_user_hw_breakpoint() que puede resultar en un cierre inesperado y en una posible corrupción de memoria. El ataque parece ser explotable mediante la ejecución de código local y la capacidad de usar ptrace. • https://github.com/dsfau/CVE-2018-1000199 http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html http://www.securitytracker.com/id/1040806 https://access.redhat.com/errata/RHSA-2018:1318 https://access.redhat.com/errata/RHSA-2018:1345 https://access.redhat.com/errata/RHSA-2018:1347 https://access.redhat.com/errata/RHSA-2018:1348 https://access.redhat.com/errata/RHSA-2018:1354 https://access.redhat.com/errata/RHSA-2018:1355 https://access.redhat.com/err • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-460: Improper Cleanup on Thrown Exception •