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: 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 •
CVSS: 8.8EPSS: 0%CPEs: 22EXPL: 6CVE-2022-32250 – Linux Kernel nf_tables_expr_destroy Use-After-Free Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-32250
net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free. El archivo net/netfilter/nf_tables_api.c en el kernel de Linux versiones hasta 5.18.1, permite a un usuario local (capaz de crear espacios de nombres de usuario/red) escalar privilegios a root porque una comprobación incorrecta de NFT_STATEFUL_EXPR conlleva a un uso de memoria previamente liberada A use-after-free vulnerability was found in the Linux kernel's Netfilter subsystem in net/netfilter/nf_tables_api.c. This flaw allows a local attacker with user access to cause a privilege escalation issue. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the nf_tables_expr_destroy method. • https://github.com/theori-io/CVE-2022-32250-exploit https://github.com/ysanatomic/CVE-2022-32250-LPE https://github.com/Kristal-g/CVE-2022-32250 http://www.openwall.com/lists/oss-security/2022/06/03/1 http://www.openwall.com/lists/oss-security/2022/06/04/1 http://www.openwall.com/lists/oss-security/2022/06/20/1 http://www.openwall.com/lists/oss-security/2022/07/03/5 http://www.openwall.com/lists/oss-security/2022/07/03/6 http://www.openwall&# • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 11EXPL: 0CVE-2022-1786
https://notcve.org/view.php?id=CVE-2022-1786
A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system. Se encontró un fallo de uso de memoria previamente liberada en el subsistema io_uring del kernel de Linux en la forma en que un usuario configura un anillo con IORING_SETUP_IOPOLL con más de una tarea completando envíos en este anillo. Este fallo permite a un usuario local colapsar o escalar sus privilegios en el sistema • https://bugzilla.redhat.com/show_bug.cgi?id=2087760 https://security.netapp.com/advisory/ntap-20220722-0001 https://www.debian.org/security/2022/dsa-5161 • CWE-416: Use After Free CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •
CVSS: 7.8EPSS: 0%CPEs: 19EXPL: 0CVE-2022-1652
https://notcve.org/view.php?id=CVE-2022-1652
Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a concurrency use-after-free flaw in the bad_flp_intr function. By executing a specially-crafted program, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system. El Kernel de Linux podría permitir a un atacante local ejecutar código arbitrario en el sistema, causado por un fallo de uso de memoria previamente liberada concurrente en la función bad_flp_intr. Al ejecutar un programa especialmente diseñado, un atacante podría explotar esta vulnerabilidad para ejecutar código arbitrario o causar una condición de denegación de servicio en el sistema • https://bugzilla.redhat.com/show_bug.cgi?id=1832397 https://francozappa.github.io/about-bias https://kb.cert.org/vuls/id/647177 https://security.netapp.com/advisory/ntap-20220722-0002 https://www.debian.org/security/2022/dsa-5173 • CWE-416: Use After Free •