CVSS: 6.8EPSS: 0%CPEs: 27EXPL: 1CVE-2021-4203 – kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses
https://notcve.org/view.php?id=CVE-2021-4203
A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information. Se ha encontrado un fallo de lectura de uso de memoria previamente liberada en la función sock_getsockopt() en el archivo net/core/sock.c debido a la carrera de SO_PEERCRED y SO_PEERGROUPS con listen() (y connect()) en el kernel de Linux. En este fallo, un atacante con privilegios de usuario puede bloquear el sistema o filtrar información interna del kernel A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information. • https://bugs.chromium.org/p/project-zero/issues/detail?id=2230&can=7&q=modified-after%3Atoday-30&sort=-modified&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary%20Modified%20Cve&cells=tiles&redir=1 https://bugzilla.redhat.com/show_bug.cgi?id=2036934 https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=35306eb23814 https://lore.kernel.org/netdev/20210929225750.2548112-1-eric.dumazet%40gmail.com/T https://security.netapp.com/advisory/ntap-20221111-0003 https:&# • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 2CVE-2021-4150
https://notcve.org/view.php?id=CVE-2021-4150
A use-after-free flaw was found in the add_partition in block/partitions/core.c in the Linux kernel. A local attacker with user privileges could cause a denial of service on the system. The issue results from the lack of code cleanup when device_add call fails when adding a partition to the disk. Se ha encontrado un fallo de uso de memoria previamente liberada en la función add_partition en el archivo block/partitions/core.c en el kernel de Linux. Un atacante local con privilegios de usuario podría causar una denegación de servicio en el sistema. • https://bugzilla.redhat.com/show_bug.cgi?id=2025938 https://lkml.org/lkml/2021/10/18/485 https://lkml.org/lkml/2021/9/6/781 • CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 2EXPL: 2CVE-2021-4148
https://notcve.org/view.php?id=CVE-2021-4148
A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem. Se encontró una vulnerabilidad en la función block_invalidatepage del kernel de Linux en el archivo fs/buffer.c en el sistema de archivos. Una falta de comprobación de saneo puede permitir a un atacante local con privilegios de usuario causar un problema de denegación de servicio (DOS) • https://bugzilla.redhat.com/show_bug.cgi?id=2026487 https://lkml.org/lkml/2021/9/12/323 https://lkml.org/lkml/2021/9/17/1037 • CWE-354: Improper Validation of Integrity Check Value •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 2CVE-2021-4149
https://notcve.org/view.php?id=CVE-2021-4149
A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem. Se encontró una vulnerabilidad en la función btrfs_alloc_tree_b en el archivo fs/btrfs/extent-tree.c en el kernel de Linux debido a una operación de bloqueo inapropiada en btrfs. En este fallo, un usuario con privilegio local puede causar una denegación de servicio (DOS) debido a un problema de bloqueo • https://bugzilla.redhat.com/show_bug.cgi?id=2026485 https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://lkml.org/lkml/2021/10/18/885 https://lkml.org/lkml/2021/9/13/2565 • CWE-667: Improper Locking •
CVSS: 5.5EPSS: 0%CPEs: 12EXPL: 1CVE-2022-0854 – kernel: swiotlb information leak with DMA_FROM_DEVICE
https://notcve.org/view.php?id=CVE-2022-0854
A memory leak flaw was found in the Linux kernel’s DMA subsystem, in the way a user calls DMA_FROM_DEVICE. This flaw allows a local user to read random memory from the kernel space. Se ha encontrado un fallo de pérdida de memoria en el subsistema DMA del kernel de Linux, en la forma en que un usuario llama a DMA_FROM_DEVICE. Este fallo permite a un usuario local leer memoria aleatoria del espacio del kernel • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/dma/swiotlb.c?h=v5.17-rc8&id=aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13 https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://www.debian.org/security/2022/dsa-5161 https://www.debian.org/security/2022/dsa-5173 https://access.redhat.com/security/cve/CVE-2022-0854 https://bugzilla.redhat.com/show_bug.cgi?id=2058395 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-401: Missing Release of Memory after Effective Lifetime •