CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 1CVE-2022-2153 – kernel: KVM: NULL pointer dereference in kvm_irq_delivery_to_apic_fast()
https://notcve.org/view.php?id=CVE-2022-2153
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. 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 ha encontrado un fallo en el KVM del kernel de Linux cuando es intentado establecer una IRQ SynIC. Este problema hace posible a un VMM que sea comportado inapropiadamente escribir en las MSR de SYNIC/STIMER, causando una desreferencia de puntero NULL. • https://bugzilla.redhat.com/show_bug.cgi?id=2069736 https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html https://www.openwall.com/lists/oss-security/2022/06/22/1 https://access.redhat.com/security& • CWE-476: NULL Pointer Dereference •
CVSS: 7.0EPSS: 0%CPEs: 13EXPL: 0CVE-2022-2961
https://notcve.org/view.php?id=CVE-2022-2961
A use-after-free flaw was found in the Linux kernel’s PLP Rose functionality in the way a user triggers a race condition by calling bind while simultaneously triggering the rose_bind() function. This flaw allows a local user to crash or potentially escalate their privileges on the system. Se ha encontrado un fallo de uso de memoria previamente liberada en la funcionalidad PLP Rose del kernel de Linux en la forma en que un usuario desencadena una condición de carrera al llamar a bind mientras es desencadenada simultáneamente la función rose_bind(). Este fallo permite a un usuario local bloquearse o escalar potencialmente sus privilegios en el sistema • https://access.redhat.com/security/cve/CVE-2022-2961 https://security.netapp.com/advisory/ntap-20230214-0004 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 5.5EPSS: 0%CPEs: 9EXPL: 0CVE-2022-0171
https://notcve.org/view.php?id=CVE-2022-0171
A flaw was found in the Linux kernel. The existing KVM SEV API has a vulnerability that allows a non-root (host) user-level application to crash the host kernel by creating a confidential guest VM instance in AMD CPU that supports Secure Encrypted Virtualization (SEV). Se ha encontrado un fallo en el kernel de Linux. La API existente de KVM SEV presenta una vulnerabilidad que permite que una aplicación a nivel de usuario no root (anfitrión) bloquee el kernel del anfitrión al crear una instancia de VM de invitado confidencial en la CPU de AMD que admite la virtualización cifrada segura (SEV). • https://access.redhat.com/security/cve/CVE-2022-0171 https://bugzilla.redhat.com/show_bug.cgi?id=2038940 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=683412ccf61294d727ead4a73d97397396e69a6b https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html https://www.debian.org/security/2022/dsa-5257 • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer CWE-459: Incomplete Cleanup •
CVSS: 7.8EPSS: 0%CPEs: 9EXPL: 0CVE-2022-2978
https://notcve.org/view.php?id=CVE-2022-2978
A flaw use after free in the Linux kernel NILFS file system was found in the way user triggers function security_inode_alloc to fail with following call to function nilfs_mdt_destroy. A local user could use this flaw to crash the system or potentially escalate their privileges on the system. Se encontró un fallo de uso de memoria previamente liberada en el sistema de archivos NILFS del kernel de Linux en la forma en que el usuario desencadena la función security_inode_alloc para que falle con la siguiente llamada a la función nilfs_mdt_destroy. Un usuario local podría usar este fallo para bloquear el sistema o escalar potencialmente sus privilegios en el sistema. • https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html https://lore.kernel.org/linux-fsdevel/20220816040859.659129-1-dzm91%40hust.edu.cn/T/#u • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2022-2959 – Linux Kernel Watch Queue Race Condition Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2022-2959
A race condition was found in the Linux kernel's watch queue due to a missing lock in pipe_resize_ring(). The specific flaw exists within the handling of pipe buffers. The issue results from the lack of proper locking when performing operations on an object. This flaw allows a local user to crash the system or escalate their privileges on the system. Se ha encontrado una condición de carrera en la cola de vigilancia del kernel de Linux debido a una falta de bloqueo en la función pipe_resize_ring(). • https://github.com/torvalds/linux/commit/189b0ddc245139af81198d1a3637cac74f96e13a https://security.netapp.com/advisory/ntap-20230214-0005 https://www.zerodayinitiative.com/advisories/ZDI-22-1165 https://access.redhat.com/security/cve/CVE-2022-2959 https://bugzilla.redhat.com/show_bug.cgi?id=2103681 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-667: Improper Locking •