CVSS: 8.1EPSS: 0%CPEs: 54EXPL: 44CVE-2024-6387 – Openssh: regresshion - race condition in ssh allows rce/dos
https://notcve.org/view.php?id=CVE-2024-6387
A security regression (CVE-2006-5051) was discovered in OpenSSH's server (sshd). There is a race condition which can lead sshd to handle some signals in an unsafe manner. An unauthenticated, remote attacker may be able to trigger it by failing to authenticate within a set time period. Se encontró una condición de ejecución del controlador de señales en el servidor de OpenSSH (sshd), donde un cliente no se autentica dentro de los segundos de LoginGraceTime (120 de forma predeterminada, 600 en versiones anteriores de OpenSSH), luego se llama al controlador SIGALRM de sshd de forma asincrónica. Sin embargo, este controlador de señales llama a varias funciones que no son seguras para señales asíncronas, por ejemplo, syslog(). • https://github.com/l0n3m4n/CVE-2024-6387 https://github.com/thegenetic/CVE-2024-6387-exploit https://github.com/d0rb/CVE-2024-6387 https://github.com/devarshishimpi/CVE-2024-6387-Check https://github.com/AiGptCode/ssh_exploiter_CVE-2024-6387 https://github.com/Symbolexe/CVE-2024-6387 https://github.com/xonoxitron/regreSSHion https://github.com/PrincipalAnthony/CVE-2024-6387-Updated-x64bit https://github.com/4lxprime/regreSSHive https://github.com/shamo0/CVE-2024-6387_PoC https:&# • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-364: Signal Handler Race Condition •
CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 0CVE-2023-6536 – Kernel: null pointer dereference in __nvmet_req_complete
https://notcve.org/view.php?id=CVE-2023-6536
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service. Se encontró una falla en el controlador NVMe del kernel de Linux. Este problema puede permitir que un actor malicioso no autenticado envíe un conjunto de paquetes TCP manipulados cuando usa NVMe sobre TCP, lo que lleva al controlador NVMe a una desreferencia del puntero NULL en el controlador NVMe, lo que provoca pánico en el kernel y una denegación de servicio. • https://access.redhat.com/errata/RHSA-2024:0723 https://access.redhat.com/errata/RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0725 https://access.redhat.com/errata/RHSA-2024:0881 https://access.redhat.com/errata/RHSA-2024:0897 https://access.redhat.com/errata/RHSA-2024:1248 https://access.redhat.com/errata/RHSA-2024:2094 https://access.redhat.com/errata/RHSA-2024:3810 https://access.redhat.com/security/cve/CVE-2023-6536 https://bugzilla.redhat.com/show • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 0CVE-2023-6535 – Kernel: null pointer dereference in nvmet_tcp_execute_request
https://notcve.org/view.php?id=CVE-2023-6535
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel panic and a denial of service. Se encontró una falla en el controlador NVMe del kernel de Linux. Este problema puede permitir que un actor malicioso no autenticado envíe un conjunto de paquetes TCP manipulados cuando usa NVMe sobre TCP, lo que lleva al controlador NVMe a una desreferencia del puntero NULL en el controlador NVMe, lo que provoca pánico en el kernel y una denegación de servicio. • https://access.redhat.com/errata/RHSA-2024:0723 https://access.redhat.com/errata/RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0725 https://access.redhat.com/errata/RHSA-2024:0881 https://access.redhat.com/errata/RHSA-2024:0897 https://access.redhat.com/errata/RHSA-2024:1248 https://access.redhat.com/errata/RHSA-2024:2094 https://access.redhat.com/errata/RHSA-2024:3810 https://access.redhat.com/security/cve/CVE-2023-6535 https://bugzilla.redhat.com/show • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 0%CPEs: 27EXPL: 0CVE-2023-6356 – Kernel: null pointer dereference in nvmet_tcp_build_iovec
https://notcve.org/view.php?id=CVE-2023-6356
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing kernel panic and a denial of service. Se encontró una falla en el controlador NVMe del kernel de Linux. Este problema puede permitir que un actor malicioso no autenticado envíe un conjunto de paquetes TCP manipulados cuando usa NVMe sobre TCP, lo que lleva al controlador NVMe a una desreferencia del puntero NULL en el controlador NVMe y provoca un pánico en el kernel y una denegación de servicio. • https://access.redhat.com/errata/RHSA-2024:0723 https://access.redhat.com/errata/RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0725 https://access.redhat.com/errata/RHSA-2024:0881 https://access.redhat.com/errata/RHSA-2024:0897 https://access.redhat.com/errata/RHSA-2024:1248 https://access.redhat.com/errata/RHSA-2024:2094 https://access.redhat.com/errata/RHSA-2024:3810 https://access.redhat.com/security/cve/CVE-2023-6356 https://bugzilla.redhat.com/show • CWE-476: NULL Pointer Dereference •
CVSS: 10.0EPSS: 89%CPEs: 345EXPL: 17CVE-2014-7169 – GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2014-7169
GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed function definitions in the values of environment variables, which allows remote attackers to write to files or possibly have unknown other impact via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271. GNU Bash hasta 4.3 bash43-025 procesa cadenas finales después de la definición malformada de funciones en los valores de variables de entorno, lo que permite a atacantes remotos escribir hacia ficheros o posiblemente tener otro impacto desconocido a través de un entorno manipulado, tal y como se ha demostrado por vectores que involucran la característica ForceCommand en sshd OpenSSH, los módulos mod_cgi y mod_cgid en el Apache HTTP Server, scripts ejecutados por clientes DHCP no especificados, y otras situaciones en la cual establecer el entorno ocurre a través de un límite privilegiado de la ejecución de Bash. Nota: Esta vulnerabilidad existe debido a una solución incompleta para CVE-2014-6271. It was found that the fix for CVE-2014-6271 was incomplete, and Bash still allowed certain characters to be injected into other environments via specially crafted environment variables. • https://www.exploit-db.com/exploits/34777 https://www.exploit-db.com/exploits/34895 https://www.exploit-db.com/exploits/34839 https://www.exploit-db.com/exploits/36503 https://www.exploit-db.com/exploits/36504 https://www.exploit-db.com/exploits/34766 https://www.exploit-db.com/exploits/35115 https://www.exploit-db.com/exploits/36933 https://www.exploit-db.com/exploits/34765 https://www.exploit-db.com/exploits/34860 https://www.exploit-db.com/exploits/34879 • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE-228: Improper Handling of Syntactically Invalid Structure •