CVE-2021-3736
https://notcve.org/view.php?id=CVE-2021-3736
23 Aug 2022 — A flaw was found in the Linux kernel. A memory leak problem was found in mbochs_ioctl in samples/vfio-mdev/mbochs.c in Virtual Function I/O (VFIO) Mediated devices. This flaw could allow a local attacker to leak internal kernel information. Se ha encontrado un fallo en el kernel de Linux. Se encontró un problema de pérdida de memoria en la función mbochs_ioctl en el archivo samples/vfio-mdev/mbochs.c en dispositivos mediados por Virtual Function I/O (VFIO). • https://access.redhat.com/security/cve/CVE-2021-3736 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2021-3659 – kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c
https://notcve.org/view.php?id=CVE-2021-3659
22 Aug 2022 — A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo de desreferencia de puntero NULL en el subsistema de red inalámbrica IEEE versión 802.15.4 del kernel de Linux en la forma en que el usuario cierra la conexión LR-WPAN. Este fallo permite a un usuario local... • https://access.redhat.com/security/cve/CVE-2021-3659 • CWE-252: Unchecked Return Value CWE-476: NULL Pointer Dereference •
CVE-2022-2873 – kernel: an out-of-bounds vulnerability in i2c-ismt driver
https://notcve.org/view.php?id=CVE-2022-2873
22 Aug 2022 — An out-of-bounds memory access flaw was found in the Linux kernel Intel’s iSMT SMBus host controller driver in the way a user triggers the I2C_SMBUS_BLOCK_DATA (with the ioctl I2C_SMBUS) with malicious input data. This flaw allows a local user to crash the system. Se ha encontrado un fallo de acceso a memoria fuera de límites en el controlador de host iSMT SMBus del kernel de Linux, en la forma en que un usuario desencadena I2C_SMBUS_BLOCK_DATA (con el ioctl I2C_SMBUS) con datos de entrada maliciosos. Este ... • https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html • CWE-131: Incorrect Calculation of Buffer Size •
CVE-2022-2503 – Linux Kernel LoadPin bypass via dm-verity table reload
https://notcve.org/view.php?id=CVE-2022-2503
12 Aug 2022 — Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for... • https://github.com/google/security-research/security/advisories/GHSA-6vq3-w69p-w63m • CWE-287: Improper Authentication CWE-288: Authentication Bypass Using an Alternate Path or Channel CWE-302: Authentication Bypass by Assumed-Immutable Data •
CVE-2022-2586 – Linux Kernel Use-After-Free Vulnerability
https://notcve.org/view.php?id=CVE-2022-2586
10 Aug 2022 — It was discovered that a nft object or expression could reference a nft set on a different nft table, leading to a use-after-free once that table was deleted. Se descubrió que un objeto o expresión nft podía hacer referencia a un conjunto nft en una tabla nft diferente, lo que generaba un use-after-free una vez que se eliminaba esa tabla. A use-after-free flaw was found in nf_tables cross-table in the net/netfilter/nf_tables_api.c function in the Linux kernel. This flaw allows a local, privileged attacker t... • https://github.com/aels/CVE-2022-2586-LPE • CWE-416: Use After Free •
CVE-2022-2588 – Linux Kernel route4_change Double Free Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-2588
10 Aug 2022 — It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0. Se descubrió que la implementación del filtro cls_route en el kernel de Linux no eliminaba un filtro antiguo de la tabla hash antes de liberarlo si su identificador tenía el valor 0. A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user ... • https://github.com/Markakd/CVE-2022-2588 • CWE-415: Double Free CWE-416: Use After Free •
CVE-2022-36123
https://notcve.org/view.php?id=CVE-2022-36123
29 Jul 2022 — The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges. El kernel de Linux versiones anteriores a 5.18.13, carece de una determinada operación de borrado para el símbolo de inicio de bloque (.bss). Esto permite a usuarios del SO huésped Xen PV causar una denegación de servicio o conseguir privilegios • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13 •
CVE-2022-0812
https://notcve.org/view.php?id=CVE-2022-0812
28 Jul 2022 — An information leak flaw was found in NFS over RDMA in the net/sunrpc/xprtrdma/rpc_rdma.c in the Linux Kernel. This flaw allows an attacker with normal user privileges to leak kernel information. Se ha encontrado un fallo de filtrado de información en NFS sobre RDMA en el archivo net/sunrpc/xprtrdma/rpc_rdma.c en el Kernel de Linux. Este fallo permite a un atacante privilegiado de usuario normales filtrar información del kernel • https://access.redhat.com/security/cve/CVE-2022-0812 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVE-2022-1184 – kernel: use-after-free and memory errors in ext4 when mounting and operating on a corrupted image
https://notcve.org/view.php?id=CVE-2022-1184
28 Jul 2022 — A use-after-free flaw was found in fs/ext4/namei.c:dx_insert_block() in the Linux kernel’s filesystem sub-component. This flaw allows a local attacker with a user privilege to cause a denial of service. Se ha detectado un fallo de uso de memoria previamente liberada en el archivo fs/ext4/namei.c:dx_insert_block() en el subcomponente del sistema de archivos del kernel de Linux. Este fallo permite a un atacante local con privilegios de usuario causar una denegación de servicio • https://access.redhat.com/security/cve/CVE-2022-1184 • CWE-416: Use After Free •
CVE-2022-36879 – kernel: xfrm_expand_policies() in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice
https://notcve.org/view.php?id=CVE-2022-36879
27 Jul 2022 — An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice. Se ha detectado un problema en el kernel de Linux versiones hasta 5.18.14. la función xfrm_expand_policies en el archivo net/xfrm/xfrm_policy.c puede causar que un refcount sea descartado dos veces A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). An error while resolving policies in xfrm_bundle_lookup causes the re... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=f85daf0e725358be78dfd208dea5fd665d8cb901 • CWE-911: Improper Update of Reference Count •