CVSS: 7.8EPSS: 0%CPEs: 15EXPL: 0CVE-2022-1998 – kernel: fanotify misuses fd_install() which could lead to use-after-free
https://notcve.org/view.php?id=CVE-2022-1998
A use after free in the Linux kernel File System notify functionality was found in the way user triggers copy_info_records_to_user() call to fail in copy_event_to_user(). A local user could use this flaw to crash the system or potentially escalate their privileges on the system. Se ha encontrado un uso de memoria previamente liberada en la funcionalidad de notificación del sistema de archivos del kernel de Linux en la forma en que el usuario activa la llamada copy_info_records_to_user() para fallar en copy_event_to_user(). Un usuario local podría usar este fallo para bloquear el sistema o potencialmente escalar sus privilegios en el sistema A use-after-free flaw was found in the Linux kernel’s File System notify functionality in the way a user triggers the copy_info_records_to_user() function call to fail in copy_event_to_user(). This flaw allows a local user to crash or potentially escalate their privileges on the system. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/fs/notify/fanotify/fanotify_user.c?h=v5.17&id=ee12595147ac1fbfb5bcb23837e26dd58d94b15d https://seclists.org/oss-sec/2022/q1/99 https://security.netapp.com/advisory/ntap-20220707-0009 https://access.redhat.com/security/cve/CVE-2022-1998 https://bugzilla.redhat.com/show_bug.cgi?id=2052312 • CWE-416: Use After Free •
CVSS: 8.2EPSS: 0%CPEs: 7EXPL: 0CVE-2022-1012 – kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
https://notcve.org/view.php?id=CVE-2022-1012
A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem. Se ha encontrado un problema de pérdida de memoria en el algoritmo de generación de puertos de origen TCP en el archivo net/ipv4/tcp.c debido al pequeño tamaño de la tabla de perturbación. Este fallo puede permitir a un atacante un filtrado de información y puede causar un problema de denegación de servicio The Linux kernel's TCP source port generation algorithm in the TCP stack contains a flaw due to the small table perturb size. This flaw allows an attacker to positively distinguish a system among devices with identical hardware and software, which lasts until the device restarts. An attacker can guess the evolution of the internal state used for source port generation. • https://bugzilla.redhat.com/show_bug.cgi?id=2064604 https://lore.kernel.org/lkml/20220427065233.2075-1-w%401wt.eu/T https://security.netapp.com/advisory/ntap-20221020-0006 https://access.redhat.com/security/cve/CVE-2022-1012 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 0CVE-2022-1651
https://notcve.org/view.php?id=CVE-2022-1651
A memory leak flaw was found in the Linux kernel in acrn_dev_ioctl in the drivers/virt/acrn/hsm.c function in how the ACRN Device Model emulates virtual NICs in VM. This flaw allows a local privileged attacker to leak unauthorized kernel information, causing a denial of service. Se ha encontrado un fallo de pérdida de memoria en el kernel de Linux en la función acrn_dev_ioctl del archivo drivers/virt/acrn/hsm.c en la forma en que el modelo de dispositivo ACRN emula las NIC virtuales en la VM. Este fallo permite a un atacante local privilegiado filtrar información del kernel no autorizada, causando una denegación de servicio. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ecd1735f14d6ac868ae5d8b7a2bf193fa11f388b https://security.netapp.com/advisory/ntap-20220901-0008 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 1CVE-2022-1263 – kernel: KVM: NULL pointer dereference in kvm_dirty_ring_push in virt/kvm/dirty_ring.c
https://notcve.org/view.php?id=CVE-2022-1263
A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service. Se encontró un problema de desreferencia de puntero NULL en KVM cuando es liberada una vCPU con el soporte de anillo sucio habilitado. Este fallo permite a un atacante local no privilegiado en el host emitir llamadas ioctl específicas, causando una condición de oops en el kernel que resulta en una denegación de servicio • https://access.redhat.com/security/cve/CVE-2022-1263 https://bugzilla.redhat.com/show_bug.cgi?id=2072698 https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4 https://www.openwall.com/lists/oss-security/2022/04/07/1 • CWE-476: NULL Pointer Dereference •
CVSS: 7.1EPSS: 0%CPEs: 13EXPL: 0CVE-2022-1671
https://notcve.org/view.php?id=CVE-2022-1671
A NULL pointer dereference flaw was found in rxrpc_preparse_s in net/rxrpc/server_key.c in the Linux kernel. This flaw allows a local attacker to crash the system or leak internal kernel information. Se ha encontrado un fallo de desreferencia de puntero NULL en la función rxrpc_preparse_s en el archivo net/rxrpc/server_key.c en el kernel de Linux. Este fallo permite a un atacante local bloquear el sistema o filtrar información interna del kernel. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ff8376ade4f668130385839cef586a0990f8ef87 https://security.netapp.com/advisory/ntap-20220901-0004 https://security.netapp.com/advisory/ntap-20220901-0008 • CWE-476: NULL Pointer Dereference •