CVSS: 8.5EPSS: 0%CPEs: 44EXPL: 0CVE-2020-25717 – samba: Active Directory (AD) domain user could become root on domain members
https://notcve.org/view.php?id=CVE-2020-25717
A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation. Se encontró un fallo en la forma en que Samba mapea usuarios del dominio a usuarios locales. Un atacante autenticado podría usar este fallo para causar una posible escalada de privilegios • https://bugzilla.redhat.com/show_bug.cgi?id=2019672 https://security.gentoo.org/glsa/202309-06 https://www.samba.org/samba/security/CVE-2020-25717.html https://access.redhat.com/security/cve/CVE-2020-25717 • CWE-20: Improper Input Validation •
CVSS: 5.5EPSS: 0%CPEs: 32EXPL: 2CVE-2021-3744 – kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd()
https://notcve.org/view.php?id=CVE-2021-3744
A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption). This vulnerability is similar with the older CVE-2019-18808. Se ha encontrado un fallo de pérdida de memoria en el kernel de Linux en la función ccp_run_aes_gcm_cmd() en el archivo drivers/crypto/ccp/ccp-ops.c, que permite a atacantes causar una denegación de servicio (consumo de memoria). Esta vulnerabilidad es similar a la anterior CVE-2019-18808 A flaw was found in the Linux kernel. A memory leak in the ccp-ops crypto driver can allow attackers to cause a denial of service. • http://www.openwall.com/lists/oss-security/2021/09/14/1 https://bugzilla.redhat.com/show_bug.cgi?id=2000627 https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680 https://kernel.googlesource.com/pub/scm/linux/kernel/git/herbert/crypto-2.6/+/505d9dcb0f7ddf9d075e729523a33d38642ae680%5E%21/#F0 https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7BLLVKYAIETEORUPTFO3TR3C33ZPFXQM https: • CWE-401: Missing Release of Memory after Effective Lifetime •
CVSS: 6.5EPSS: 0%CPEs: 27EXPL: 1CVE-2021-3733 – python: urllib: Regular expression DoS in AbstractBasicAuthHandler
https://notcve.org/view.php?id=CVE-2021-3733
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during an authentication request with a specially crafted payload that is sent by the server to the client. The greatest threat that this flaw poses is to application availability. Se presenta un fallo en la clase AbstractBasicAuthHandler de urllib. Un atacante que controle un servidor HTTP malicioso al que se conecte un cliente HTTP (como un navegador web), podría desencadenar una Denegación de Servicio por Expresión Regular (ReDOS) durante una petición de autenticación con una carga útil especialmente diseñada que sea enviada por el servidor al cliente. • https://bugs.python.org/issue43075 https://bugzilla.redhat.com/show_bug.cgi?id=1995234 https://github.com/python/cpython/commit/7215d1ae25525c92b026166f9d5cac85fb https://github.com/python/cpython/pull/24391 https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html https://security.netapp.com/advisory/ntap-20220407-0001 https://ubuntu.com/security/CVE-2021-3733 https://access.redhat.com/security/cve/CVE-2021-3733 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 1%CPEs: 27EXPL: 1CVE-2021-3737 – python: urllib: HTTP client possible infinite loop on a 100 Continue response
https://notcve.org/view.php?id=CVE-2021-3737
A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en python. Una respuesta HTTP manejada inapropiadamente en el código del cliente HTTP de python puede permitir a un atacante remoto, que controle el servidor HTTP, hacer que el script del cliente entre en un bucle infinito, consumiendo tiempo de CPU. • https://bugs.python.org/issue44022 https://bugzilla.redhat.com/show_bug.cgi?id=1995162 https://github.com/python/cpython/pull/25916 https://github.com/python/cpython/pull/26503 https://lists.debian.org/debian-lts-announce/2023/05/msg00024.html https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html https://python-security.readthedocs.io/vuln/urllib-100-continue-loop.html https://security.netapp.com/advisory/ntap-20220407-0009 https://ubuntu.com/security/CVE-2021-3737 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 8.8EPSS: 0%CPEs: 76EXPL: 1CVE-2021-3656 – kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)
https://notcve.org/view.php?id=CVE-2021-3656
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. Se ha encontrado un fallo en el código AMD de KVM para soportar la virtualización anidada SVM. • https://github.com/rami08448/CVE-2021-3656-Demo https://bugzilla.redhat.com/show_bug.cgi?id=1983988 https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc https://github.com/torvalds/linux/commit/c7dfa4009965a9b2d7b329ee970eb8da0d32f0bc https://www.openwall.com/lists/oss-security/2021/08/16/1 https://access.redhat.com/security/cve/CVE-2021-3656 • CWE-862: Missing Authorization •