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CVSS: 4.6EPSS: 0%CPEs: 4EXPL: 0

The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and uses it to index a small array, resulting in an object out-of-bounds (OOB) read that potentially allows arbitrary read in the kernel address space. La función hso_get_config_data en drivers/net/usb/hso.c en el kernel de Linux, hasta la versión 4.19.8, lee if_num desde el dispositivo USB (como un u8) y lo emplea para indexar un array pequeño, lo que resulta en una lectura de objetos fuera de límites (OOB) que podría permitir la lectura arbitraria en el espacio de direcciones del kernel. A flaw was found in the Linux kernel in the function hso_probe() which reads if_num value from the USB device (as an u8) and uses it without a length check to index an array, resulting in an OOB memory read in hso_probe() or hso_get_config_data(). An attacker with a forged USB device and physical access to a system (needed to connect such a device) can cause a system crash and a denial of service. • http://lists.opensuse.org/opensuse-security-announce/2019-01/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00007.html http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html https://access.redhat.com/errata/RHSA-2019:3309 https://access.redhat.com/errata/RHSA-2019:3517 https://hexhive.epfl.ch/projects/perifuzz https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian-lts-an • CWE-125: Out-of-bounds Read •

CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0

In change_port_settings in drivers/usb/serial/io_ti.c in the Linux kernel before 4.11.3, local users could cause a denial of service by division-by-zero in the serial device layer by trying to set very high baud rates. En change_port_settings en drivers/usb/serial/io_ti.c en el kernel de Linux, en versiones anteriores a la 4.11.3, los usuarios locales podrían provocar una denegación de servicio (DoS) por medio de una división entre cero en la capa del dispositivo en serie intentando establecer tasas de baudio muy altas. A division-by-zero in set_termios(), when debugging is enabled, was found in the Linux kernel. When the [io_ti] driver is loaded, a local unprivileged attacker can request incorrect high transfer speed in the change_port_settings() in the drivers/usb/serial/io_ti.c so that the divisor value becomes zero and causes a system crash resulting in a denial of service. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6aeb75e6adfaed16e58780309613a578fe1ee90b http://www.securityfocus.com/bid/106802 https://bugzilla.suse.com/show_bug.cgi?id=1123706 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3 https://github.com/torvalds/linux/commit/6aeb75e6adfaed16e58780309613a578fe1ee90b https://usn.ubuntu.com/3933-1 https://usn.ubuntu.com/3933-2 https://access.redhat.com/security/cve/CVE-2017-18360 https://bugzilla.redhat.co • CWE-369: Divide By Zero •

CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 1

The mincore() implementation in mm/mincore.c in the Linux kernel through 4.19.13 allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may be possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. La implementación mincore() en mm/mincore.c en el kernel de Linux hasta la versión 4.19.13 permitía a los atacantes observar patrones de acceso a las páginas de caché de otros procesos en el mismo sistema, permitiendo el esnifado de información secreta. (Su arreglo afecta a la salida del programa fincore.) • https://github.com/mmxsrup/CVE-2019-5489 http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50e http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-pagecache-en http://www.securityfocus.com/bid/106478 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-319: Cleartext Transmission of Sensitive Information •

CVSS: 4.9EPSS: 0%CPEs: 4EXPL: 1

An issue was discovered in can_can_gw_rcv in net/can/gw.c in the Linux kernel through 4.19.13. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user "root" with CAP_NET_ADMIN can create a CAN frame modification rule that makes the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames. • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html http://www.securityfocus.com/bid/106443 https://bugzilla.suse.com/show_bug.cgi?id=1120386 https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=0aaa81377c5a01f686bcdb8c7a6929a7bf330c68 https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html https://m • CWE-787: Out-of-bounds Write •

CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 0

An issue was discovered in the Linux kernel before 4.18.11. The ipddp_ioctl function in drivers/net/appletalk/ipddp.c allows local users to obtain sensitive kernel address information by leveraging CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call. Se ha descubierto un problema en el kernel de Linux hasta antes de la versión 4.18.11. La función ipddp_ioctl en drivers/net/appletalk/ipddp.c permite que los usuarios locales obtengan información sensible del kernel aprovechando CAP_NET_ADMIN para leer los campos dev y next de ipddp_route mediante una llamada IOCTL SIOCFINDIPDDPRT. • http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9824dfae5741275473a23a7ed5756c7b6efacc9d http://www.securityfocus.com/bid/106347 https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11 https://github.com/torvalds/linux/commit/9824dfae5741275473a23a7ed5756c7b6efacc9d https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html https://lkml.org/lkml/2018/9/27/480 https://usn.ubuntu.com • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •