CVSS: 4.7EPSS: 0%CPEs: 9EXPL: 0CVE-2020-27170 – kernel: Speculation on pointer arithmetic against bpf_context pointer
https://notcve.org/view.php?id=CVE-2020-27170
20 Mar 2021 — An issue was discovered in the Linux kernel before 5.11.8. kernel/bpf/verifier.c performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory, aka CID-f232326f6966. This affects pointer types that do not define a ptr_limit. Se detectó un problema en el kernel de Linux versiones anteriores a 5.11.8. El archivo kernel/bpf/verifier.c lleva a cabo especulaciones no deseadas fuera de ... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-203: Observable Discrepancy •
CVSS: 7.8EPSS: 0%CPEs: 13EXPL: 0CVE-2021-28952
https://notcve.org/view.php?id=CVE-2021-28952
20 Mar 2021 — An issue was discovered in the Linux kernel through 5.11.8. The sound/soc/qcom/sdm845.c soundwire device driver has a buffer overflow when an unexpected port ID number is encountered, aka CID-1c668e1c0a0f. (This has been fixed in 5.12-rc4.) Se detectó un problema en el kernel de Linux versiones hasta 5.11.8. El controlador de dispositivo soundwire del archivo sound/soc/qcom/sdm845.c presenta un desbordamiento del búfer cuando es encontrado un número de identificación de puerto no previsto, también se c... • https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=1c668e1c0a0f74472469cd514f40c9012b324c31 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2021-28950 – kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode
https://notcve.org/view.php?id=CVE-2021-28950
20 Mar 2021 — An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A "stall on CPU" can occur because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1. Se detectó un problema en el archivo fs/fuse/fuse_i.h en el kernel de Linux versiones anteriores a 5.11.8. Un "stall on CPU" puede ocurrir porque un bucle de reintento encuentra continuamente el mismo inode malo, también se conoce como CID-775c5033a0d1 A denial of service in the kernel side of the FUSE functionality ca... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.8 • CWE-834: Excessive Iteration CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 5.5EPSS: 0%CPEs: 13EXPL: 0CVE-2021-28951
https://notcve.org/view.php?id=CVE-2021-28951
20 Mar 2021 — An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25. Se detectó un problema en el archivo fs/io_uring.c en el kernel de Linux versiones hasta 5.11.8. Permite a atacantes causar una denegación de servicio (deadlock) porque la salida puede estar esperando para estacionar un hilo ... • https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3ebba796fa251d042be42b929a2d916ee5c34a49 • CWE-667: Improper Locking •
CVSS: 3.8EPSS: 0%CPEs: 5EXPL: 0CVE-2021-20239 – kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure
https://notcve.org/view.php?id=CVE-2021-20239
16 Mar 2021 — A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality. Se encontró un fallo en el kernel de Linux en versiones anteriores a 5.4.92 en el protocolo BPF. Este fallo permite a un atacante con una cuenta local filtrar información sobre las direcciones internas del kernel. • https://bugzilla.redhat.com/show_bug.cgi?id=1923636 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-822: Untrusted Pointer Dereference •
CVSS: 6.4EPSS: 0%CPEs: 7EXPL: 0CVE-2021-20261
https://notcve.org/view.php?id=CVE-2021-20261
11 Mar 2021 — A race condition was found in the Linux kernels implementation of the floppy disk drive controller driver software. The impact of this issue is lessened by the fact that the default permissions on the floppy device (/dev/fd0) are restricted to root. If the permissions on the device have changed the impact changes greatly. In the default configuration root (or equivalent) permissions are required to attack this flaw. Se encontró una condición de carrera en la implementación del kernel de Linux del software m... • https://bugzilla.redhat.com/show_bug.cgi?id=1932150 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 6.7EPSS: 0%CPEs: 2EXPL: 2CVE-2021-3411
https://notcve.org/view.php?id=CVE-2021-3411
09 Mar 2021 — A flaw was found in the Linux kernel in versions prior to 5.10. A violation of memory access was found while detecting a padding of int3 in the linking state. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. Se encontró un fallo en el kernel de Linux en versiones anteriores a 5.10. Se encontró una violación del acceso a la memoria al detectar un relleno de int3 en el estado de enlace. • http://blog.pi3.com.pl/?p=831 • CWE-94: Improper Control of Generation of Code ('Code Injection') •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2021-20268
https://notcve.org/view.php?id=CVE-2021-20268
09 Mar 2021 — An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo de acceso fuera de límites en la implementación del comprobador de código eBPF en el kernel de Linux, en la... • https://bugzilla.redhat.com/show_bug.cgi?id=1923816 • CWE-20: Improper Input Validation CWE-190: Integer Overflow or Wraparound •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 1CVE-2021-27365 – kernel: heap buffer overflow in the iSCSI subsystem
https://notcve.org/view.php?id=CVE-2021-27365
07 Mar 2021 — An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message. Se detectó un problema en el kernel de Linux versiones hasta 5.11.3. Determinadas estructuras de datos iSCSI no tienen restricciones de longitud o comprobaciones apropiadas y pueden e... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVSS: 7.1EPSS: 0%CPEs: 9EXPL: 1CVE-2021-27364 – kernel: out-of-bounds read in libiscsi module
https://notcve.org/view.php?id=CVE-2021-27364
07 Mar 2021 — An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages. Se detectó un problema en el kernel de Linux versiones hasta 5.11.3. El archivo drivers/scsi/scsi_transport_iscsi.c está afectado negativamente por la capacidad de un usuario sin privilegios de crear mensajes Netlink A flaw was found in the Linux kernel. An out-of-bounds read was discovered in the libiscsi module that cou... • http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html • CWE-125: Out-of-bounds Read •