CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 1CVE-2021-43389 – kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c
https://notcve.org/view.php?id=CVE-2021-43389
An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. Se ha detectado un problema en el kernel de Linux versiones anteriores a 5.14.15. Se presenta un fallo de índice de matriz fuera de límites en la función detach_capi_ctr en el archivo drivers/isdn/capi/kcapi.c An improper validation of an array index and out of bounds memory read in the Linux kernel's Integrated Services Digital Network (ISDN) functionality was found in the way users call ioctl CMTPCONNADD. A local user could use this flaw to crash the system or starve the resources causing denial of service. • http://www.openwall.com/lists/oss-security/2021/11/05/1 https://bugzilla.redhat.com/show_bug.cgi?id=2013180 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1f3e2e97c003f80c4b087092b225c8787ff91e4d https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://lore.kernel.org/netdev/CAFcO6XOvGQrRTaTkaJ0p3zR7y7nrAWD79r48 • CWE-125: Out-of-bounds Read •
CVSS: 4.7EPSS: 0%CPEs: 13EXPL: 0CVE-2020-27820 – kernel: use-after-free in nouveau kernel module
https://notcve.org/view.php?id=CVE-2020-27820
A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver). Se ha encontrado una vulnerabilidad en el kernel de Linux, en la que un uso de memoria previamente liberada en el manejador postclose() de nouveau podría ocurrir si se quita el dispositivo (que no es común quitar la tarjeta de vídeo físicamente sin apagar, pero lo mismo ocurre si se "desvincula" el controlador) • https://bugzilla.redhat.com/show_bug.cgi?id=1901726 https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline%40redhat.com https://lore.kernel.org/dri-devel/20201103194912.184413-3-jcline%40redhat.com https://lore.kernel.org/dri-devel/20201103194912.184413-4-jcline%40redhat.com https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2020-27820 https://lore.kernel.org/dri-devel/20201103194912.184413-2-jcline@redhat.com https://lore.kernel.org • CWE-416: Use After Free •
CVSS: 9.8EPSS: 4%CPEs: 18EXPL: 3CVE-2021-43267 – kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type
https://notcve.org/view.php?id=CVE-2021-43267
An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type. Se ha detectado un problema en el archivo net/tipc/crypto.c en el kernel de Linux versiones anteriores a 5.14.16. La funcionalidad Transparent Inter-Process Communication (TIPC) permite a atacantes remotos explotar una comprobación insuficiente de los tamaños suministrados por el usuario para el tipo de mensaje MSG_CRYPTO A flaw was discovered in the cryptographic receive code in the Linux kernel's implementation of transparent interprocess communication. An attacker, with the ability to send TIPC messages to the target, can corrupt memory and escalate privileges on the target system. • https://github.com/zzhacked/CVE-2021-43267 https://github.com/DarkSprings/CVE-2021-43267-POC http://www.openwall.com/lists/oss-security/2022/02/10/1 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16 https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message&# • CWE-20: Improper Input Validation CWE-1284: Improper Validation of Specified Quantity in Input •
CVSS: 7.8EPSS: 0%CPEs: 17EXPL: 1CVE-2021-43057
https://notcve.org/view.php?id=CVE-2021-43057
An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task. Se ha detectado un problema en el kernel de Linux versiones anteriores a 5.14.8. Un uso de memoria previamente liberada en la función selinux_ptrace_traceme (también conocido como el manejador de SELinux para PTRACE_TRACEME) podría ser usado por atacantes locales para causar una corrupción de memoria y escalar privilegios, también se conoce como CID-a3727a8bac0a. • https://bugs.chromium.org/p/project-zero/issues/detail?id=2229 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.8 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a3727a8bac0a9e77c70820655fd8715523ba3db7 https://security.netapp.com/advisory/ntap-20211125-0001 • CWE-416: Use After Free •
CVSS: 6.7EPSS: 0%CPEs: 18EXPL: 1CVE-2021-42327
https://notcve.org/view.php?id=CVE-2021-42327
dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parse_write_buffer_into_params when it uses the size of copy_from_user to copy a userspace buffer into a 40-byte heap buffer. la función dp_link_settings_write en el archivo drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c en el kernel de Linux versiones hasta 5.14.14, permite un desbordamiento de búfer en la región heap de la memoria por parte de un atacante que puede escribir una cadena en el sistema de archivos de depuración de los controladores de la GPU AMD. No se presentan comprobaciones de tamaño dentro de parse_write_buffer_into_params cuando usa el tamaño de copy_from_user para copiar un buffer de espacio de usuario en un buffer de pila de 40 bytes • https://github.com/docfate111/CVE-2021-42327 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f23750b5b3d98653b31d4469592935ef6364ad67 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7 https://security.netapp.com/advisory/ntap-20211118-0005 https://www.mail-archive.com/amd-gfx • CWE-787: Out-of-bounds Write •