CVSS: 7.1EPSS: 0%CPEs: 4EXPL: 0CVE-2020-24490 – kernel: net: bluetooth: heap buffer overflow when processing extended advertising report events
https://notcve.org/view.php?id=CVE-2020-24490
Improper buffer restrictions in BlueZ may allow an unauthenticated user to potentially enable denial of service via adjacent access. This affects all Linux kernel versions that support BlueZ. Unas restricciones de búfer inapropiadas en BlueZ pueden permitir a un usuario no autenticado habilitar potencialmente la denegación de servicio por medio de un acceso adyacente. Esto afecta a todas las versiones del kernel de Linux que admiten BlueZ A heap buffer overflow flaw was found in the way the Linux kernel’s Bluetooth implementation processed extended advertising report events. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or to potentially execute arbitrary code on the system by sending a specially crafted Bluetooth packet. • https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html https://access.redhat.com/security/cve/CVE-2020-24490 https://bugzilla.redhat.com/show_bug.cgi?id=1888449 • CWE-122: Heap-based Buffer Overflow •
CVSS: 8.8EPSS: 0%CPEs: 13EXPL: 2CVE-2020-12351 – Linux Kernel 5.4 - 'BleedingTooth' Bluetooth Zero-Click Remote Code Execution
https://notcve.org/view.php?id=CVE-2020-12351
Improper input validation in BlueZ may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access. Una comprobación de entrada incorrecta en BlueZ puede permitir a un usuario no autenticado habilitar potencialmente una escalada de privilegios por medio de un acceso adyacente A flaw was found in the way the Linux kernel’s Bluetooth implementation handled L2CAP (Logical Link Control and Adaptation Protocol) packets with A2MP (Alternate MAC-PHY Manager Protocol) CID (Channel Identifier). This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. • https://www.exploit-db.com/exploits/49754 http://packetstormsecurity.com/files/162131/Linux-Kernel-5.4-BleedingTooth-Remote-Code-Execution.html https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html?wapkw=CVE-2020-12351 https://access.redhat.com/security/cve/CVE-2020-12351 https://bugzilla.redhat.com/show_bug.cgi?id=1886521 • CWE-20: Improper Input Validation CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 2CVE-2020-27194
https://notcve.org/view.php?id=CVE-2020-27194
An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values, aka CID-5b9fbeb75b6a. Se detectó un problema en el kernel de Linux versiones anteriores a 5.8.15. La función scalar32_min_max_or en el archivo kernel/bpf/verifier.c, maneja inapropiadamente el seguimiento de límites durante el uso de valores de 64 bits, también se conoce como CID-5b9fbeb75b6a • https://github.com/xmzyshypnc/CVE-2020-27194 https://github.com/willinin/CVE-2020-27194-exp https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15 https://github.com/torvalds/linux/commit/5b9fbeb75b6a98955f628e205ac26689bcb1383e • CWE-681: Incorrect Conversion between Numeric Types •
CVSS: 5.1EPSS: 0%CPEs: 5EXPL: 0CVE-2020-16120 – Unprivileged overlay + shiftfs read access
https://notcve.org/view.php?id=CVE-2020-16120
Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a mountpoint controlled by the user, like a removable device. This was introduced in kernel version 4.19 by commit d1d04ef ("ovl: stack file ops"). This was fixed in kernel version 5.8 by commits 56230d9 ("ovl: verify permissions in ovl_path_open()"), 48bd024 ("ovl: switch to mounter creds in readdir") and 05acefb ("ovl: check permission to open real file"). Additionally, commits 130fdbc ("ovl: pass correct flags for opening real directory") and 292f902 ("ovl: call secutiry hook in ovl_real_ioctl()") in kernel 5.8 might also be desired or necessary. • https://git.kernel.org/linus/05acefb4872dae89e772729efb194af754c877e8 https://git.kernel.org/linus/48bd024b8a40d73ad6b086de2615738da0c7004f https://git.kernel.org/linus/56230d956739b9cb1cbde439d76227d77979a04d https://git.kernel.org/linus/b6650dab404c701d7fe08a108b746542a934da84 https://git.kernel.org/linus/d1d04ef8572bc8c22265057bd3d5a79f223f8f52 https://launchpad.net/bugs/1894980 https://launchpad.net/bugs/1900141 https://ubuntu.com/USN-4576-1 https://ubuntu.com/USN-4577-1 https://ubuntu.com/USN-4578-1 https://www.openwall • CWE-266: Incorrect Privilege Assignment •
CVSS: 7.5EPSS: 1%CPEs: 20EXPL: 1CVE-2020-25645 – kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints
https://notcve.org/view.php?id=CVE-2020-25645
A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality. Se encontró un fallo en el kernel de Linux en versiones anteriores a 5.9-rc7. El tráfico entre dos endpoints Geneve puede no estar cifrado cuando IPsec está configurado para cifrar el tráfico para el puerto UDP específico usado por el túnel GENEVE, permitiendo a cualquier persona entre los dos endpoints leer el tráfico sin cifrar. • http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html http://packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.html https://bugzilla.redhat.com/show_bug.cgi?id=1883988 https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html https://security.netapp.com/advisory/ntap-20201103-0004 https://ww • CWE-319: Cleartext Transmission of Sensitive Information •