CVE-2021-3669 – kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts
https://notcve.org/view.php?id=CVE-2021-3669
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS. Se ha encontrado un fallo en el kernel de Linux. La medición del uso de la memoria compartida no escala con grandes recuentos de segmentos de memoria compartida, lo que podría conllevar a el agotamiento de recursos y el DoS. • https://access.redhat.com/security/cve/CVE-2021-3669 https://bugzilla.redhat.com/show_bug.cgi?id=1980619 https://bugzilla.redhat.com/show_bug.cgi?id=1986473 https://security-tracker.debian.org/tracker/CVE-2021-3669 • CWE-400: Uncontrolled Resource Consumption CWE-770: Allocation of Resources Without Limits or Throttling •
CVE-2022-0852 – convert2rhel: Red Hat account password passed via command line by code
https://notcve.org/view.php?id=CVE-2022-0852
There is a flaw in convert2rhel. convert2rhel passes the Red Hat account password to subscription-manager via the command line, which could allow unauthorized users locally on the machine to view the password via the process command line via e.g. htop or ps. The specific impact varies upon the privileges of the Red Hat account in question, but it could affect the integrity, availability, and/or data confidentiality of other systems that are administered by that account. This occurs regardless of how the password is supplied to convert2rhel. Se presentan un fallo en convert2rhel. convert2rhel pasa la contraseña de la cuenta de Red Hat a subscription-manager por medio de la línea de comandos, lo que podría permitir a usuarios no autorizados localmente en la máquina visualizar la contraseña por medio de la línea de comandos del proceso, por ejemplo, htop o ps. El impacto específico varía según los privilegios de la cuenta de Red Hat en cuestión, pero podría afectar la integridad, disponibilidad y/o confidencialidad de los datos de otros sistemas que son administrados por esa cuenta. • https://access.redhat.com/security/cve/CVE-2022-0852 https://bugzilla.redhat.com/show_bug.cgi?id=2060129 https://github.com/oamg/convert2rhel/commit/8d72fb030ed31116fdb256b327d299337b000af4 https://github.com/oamg/convert2rhel/pull/492 https://issues.redhat.com/browse/RHELC-432 • CWE-359: Exposure of Private Personal Information to an Unauthorized Actor CWE-668: Exposure of Resource to Wrong Sphere •
CVE-2022-1304 – e2fsprogs: out-of-bounds read/write via crafted filesystem
https://notcve.org/view.php?id=CVE-2022-1304
An out-of-bounds read/write vulnerability was found in e2fsprogs 1.46.5. This issue leads to a segmentation fault and possibly arbitrary code execution via a specially crafted filesystem. Se ha encontrado una vulnerabilidad de lectura/escritura fuera de límites en e2fsprogs versión 1.46.5. Este problema conlleva a un fallo de segmentación y posiblemente una ejecución de código arbitrario por medio de un sistema de archivos especialmente diseñado An out-of-bounds read/write vulnerability was found in e2fsprogs. This issue leads to a segmentation fault and possibly arbitrary code execution via a specially crafted filesystem. • https://bugzilla.redhat.com/show_bug.cgi?id=2069726 https://access.redhat.com/security/cve/CVE-2022-1304 • CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •
CVE-2022-28796
https://notcve.org/view.php?id=CVE-2022-28796
jbd2_journal_wait_updates in fs/jbd2/transaction.c in the Linux kernel before 5.17.1 has a use-after-free caused by a transaction_t race condition. La función jbd2_journal_wait_updates en el archivo fs/jbd2/transaction.c en el kernel de Linux versiones anteriores a 5.17.1, presenta un uso de memoria previamente liberada causado por una condición de carrera transaction_t • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.1 https://github.com/torvalds/linux/commit/cc16eecae687912238ee6efbff71ad31e2bc414e https://security.netapp.com/advisory/ntap-20220506-0006 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVE-2022-1011 – kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes
https://notcve.org/view.php?id=CVE-2022-1011
A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation. Se ha encontrado un fallo de uso después de libre en el sistema de archivos FUSE del kernel de Linux en la forma en que un usuario activa write(). Este defecto permite a un usuario local obtener acceso no autorizado a los datos del sistema de archivos FUSE, lo que resulta en una escalada de privilegios Linux suffers from a vulnerability where FUSE allows use-after-free reads of write() buffers, allowing theft of (partial) /etc/shadow hashes. • https://github.com/xkaneiki/CVE-2022-1011 https://bugzilla.redhat.com/show_bug.cgi?id=2064855 https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git/commit/?h=for-next https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://www.debian.org/security/2022/dsa-5173 https://www.oracle.com/security-alerts/cpujul2022.html https://access.redhat.com/security/cve/CVE-2022-1011 • CWE-416: Use After Free •