CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2018-18710
https://notcve.org/view.php?id=CVE-2018-18710
An issue was discovered in the Linux kernel through 4.19. An information leak in cdrom_ioctl_select_disc in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940 and CVE-2018-16658. Se ha descubierto un problema en el kernel de Linux hasta la versión 4.19. Una fuga de información en cdrom_ioctl_select_disc en drivers/cdrom/cdrom.c podría ser empleada por atacantes locales para leer memoria del kernel debido a que una conversión de un long no firmado a int interfiere con la comprobación de límites. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4f3aa2e1e67bb48dfbaaf1cad59013d5a5bc276 http://www.securityfocus.com/bid/106041 https://github.com/torvalds/linux/commit/e4f3aa2e1e67bb48dfbaaf1cad59013d5a5bc276 https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html https://usn.ubuntu.com/3846-1 https://usn.ubuntu.com/3847-1 ht • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 1CVE-2018-18690 – kernel: filesystem corruption due to an unchecked error condition during an xfs attribute change
https://notcve.org/view.php?id=CVE-2018-18690
In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form. En el kernel de Linux en versiones anteriores a la 4.17, un atacante local que sea capaz de establecer atributos en un sistema de archivos xfs podría hacer que este sistema de archivos no esté operativo hasta el siguiente montaje desencadenando una condición de error no marcada. Esto se debe a que xfs_attr_shortform_addname en fs/xfs/libxfs/xfs_attr.c gestiona de manera incorrecta las operaciones ATTR_REPLACE con la conversión de un attr de forma corta a forma larga. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b38460dc8e4eafba06c78f8e37099d3b34d473c http://www.securityfocus.com/bid/105753 https://bugzilla.kernel.org/show_bug.cgi?id=199119 https://bugzilla.suse.com/show_bug.cgi?id=1105025 https://github.com/torvalds/linux/commit/7b38460dc8e4eafba06c78f8e37099d3b34d473c https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian- • CWE-391: Unchecked Error Condition CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 3.3EPSS: 0%CPEs: 3EXPL: 0CVE-2018-18386 – kernel: Type confusion in drivers/tty/n_tty.c allows for a denial of service
https://notcve.org/view.php?id=CVE-2018-18386
drivers/tty/n_tty.c in the Linux kernel before 4.14.11 allows local attackers (who are able to access pseudo terminals) to hang/block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ. drivers/tty/n_tty.c en el kernel de Linux en versiones anteriores a la 4.14.11 permite que atacantes locales (que pueden acceder a los pseudoterminales) bloqueen el uso de dispositivos pseudoterminal debido a una confusión EXTPROC versus ICANON en TIOCINQ. A security flaw was found in the Linux kernel in drivers/tty/n_tty.c which allows local attackers (ones who are able to access pseudo terminals) to lock them up and block further usage of any pseudo terminal devices due to an EXTPROC versus ICANON confusion in TIOCINQ handler. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=966031f340185eddd05affcf72b740549f056348 https://access.redhat.com/errata/RHSA-2019:0831 https://bugzilla.suse.com/show_bug.cgi?id=1094825 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.11 https://github.com/torvalds/linux/commit/966031f340185eddd05affcf72b740549f056348 https://usn.ubuntu.com/3849-1 https://usn.ubuntu.com/3849-2 https://access.redhat.com/security/cve/CVE-2018-18386 https://bugzilla& • CWE-704: Incorrect Type Conversion or Cast CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.0EPSS: 0%CPEs: 2EXPL: 0CVE-2018-14656
https://notcve.org/view.php?id=CVE-2018-14656
A missing address check in the callers of the show_opcodes() in the Linux kernel allows an attacker to dump the kernel memory at an arbitrary kernel address into the dmesg log. La falta de una comprobación de direcciones en los llamantes de show_opcodes() en el kernel de Linux permite que un atacante vuelque la memoria del kernel en una dirección arbitraria del kernel en el registro dmesg. • http://www.securitytracker.com/id/1041804 https://bugs.chromium.org/p/project-zero/issues/detail?id=1650 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14656 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=342db04ae71273322f0011384a9ed414df8bdae4 https://lore.kernel.org/lkml/20180828154901.112726-1-jannh%40google.com/T https://seclists.org/oss-sec/2018/q4/9 • CWE-20: Improper Input Validation •
CVSS: 7.1EPSS: 0%CPEs: 4EXPL: 0CVE-2018-18021 – kernel: Privilege escalation on arm64 via KVM hypervisor
https://notcve.org/view.php?id=CVE-2018-18021
arch/arm64/kvm/guest.c in KVM in the Linux kernel before 4.18.12 on the arm64 platform mishandles the KVM_SET_ON_REG ioctl. This is exploitable by attackers who can create virtual machines. An attacker can arbitrarily redirect the hypervisor flow of control (with full register control). An attacker can also cause a denial of service (hypervisor panic) via an illegal exception return. This occurs because of insufficient restrictions on userspace access to the core register file, and because PSTATE.M validation does not prevent unintended execution modes. arch/arm64/kvm/guest.c en KVM en el kernel de Linux en versiones anteriores a la 4.18.12 en la plataforma arm64 gestiona de manera incorrecta la llamada IOCTL KVM_SET_ON_REG. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2a3f93459d689d990b3ecfbe782fec89b97d3279 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d26c25a9d19b5976b319af528886f89cf455692d http://www.securityfocus.com/bid/105550 https://access.redhat.com/errata/RHSA-2018:3656 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.12 https://github.com/torvalds/linux/commit/2a3f93459d689d990b3ecfbe782fec89b97d3279 https://github.com/torvalds/linux/commit/d26c25a9d19b5 • CWE-20: Improper Input Validation •