CVSS: 7.8EPSS: 0%CPEs: 21EXPL: 1CVE-2019-25044
https://notcve.org/view.php?id=CVE-2019-25044
The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue. El block subsystem en el kernel de Linux versiones anteriores a 5.2 presenta un uso de la memoria previamente liberada que puede conllevar a una ejecución de código arbitrario en el contexto del kernel y una escalada de privilegios, también se conoce como CID-c3e2219216c9. Esto está relacionado con las funciones blk_mq_free_rqs y blk_cleanup_queue • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6 https://security.netapp.com/advisory/ntap-20210629-0006 https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 31EXPL: 3CVE-2020-25670
https://notcve.org/view.php?id=CVE-2020-25670
A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations. Se encontró una vulnerabilidad en el kernel de Linux donde un filtrado de refcount en la función llcp_sock_bind() causa un uso de la memoria previamente liberada que podría conllevar a una escaladas de privilegios • http://www.openwall.com/lists/oss-security/2020/11/01/1 http://www.openwall.com/lists/oss-security/2021/05/11/4 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PW3OASG7OEMHANDWBM5US5WKTOC76KMH https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UTVACC6PGS6OSD3EYY7FZUAZT2EUMFH5 https://li • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 24EXPL: 0CVE-2021-3483
https://notcve.org/view.php?id=CVE-2021-3483
A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected Se encontró una fallo en el controlador Nosy en el kernel de Linux. Este problema permite a un dispositivo ser insertado dos veces en una lista doblemente enlazada, conllevando a un uso de la memoria previamente liberada cuando uno de estos dispositivos es eliminado. • http://www.openwall.com/lists/oss-security/2021/04/07/1 https://bugzilla.redhat.com/show_bug.cgi?id=1948045 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://security.netapp.com/advisory/ntap-20210629-0002 • CWE-416: Use After Free •
CVSS: 7.0EPSS: 0%CPEs: 19EXPL: 1CVE-2021-32399 – kernel: race condition for removal of the HCI controller
https://notcve.org/view.php?id=CVE-2021-32399
net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller. El archivo net/bluetooth/hci_request.c en el kernel de Linux versiones hasta 5.12.2, presenta una condición de carrera para la eliminación del controlador HCI A flaw was found in the Linux kernel’s handling of the removal of Bluetooth HCI controllers. This flaw allows an attacker with a local account to exploit a race condition, leading to corrupted memory and possible privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. • http://www.openwall.com/lists/oss-security/2021/05/11/2 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e2cb6b891ad2b8caa9131e3be70f45243df82a80 https://github.com/torvalds/linux/commit/e2cb6b891ad2b8caa9131e3be70f45243df82a80 https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html https://security.netapp.com/advisory/ntap-20210622-0006 https://access.redhat.com/security/cve/CVE-2021-32399 https:&#x • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 6.1EPSS: 0%CPEs: 4EXPL: 1CVE-2020-13529 – systemd: DHCP FORCERENEW authentication not implemented can cause a system running the DHCP client to have its network reconfigured
https://notcve.org/view.php?id=CVE-2020-13529
An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server. Se presenta una vulnerabilidad de denegación de servicio explotable en Systemd 245. Un paquete DHCP FORCERENEW especialmente diseñado puede hacer que un servidor que ejecuta el cliente DHCP sea vulnerable a un ataque de suplantación de DHCP ACK. • http://www.openwall.com/lists/oss-security/2021/08/04/2 http://www.openwall.com/lists/oss-security/2021/08/17/3 http://www.openwall.com/lists/oss-security/2021/09/07/3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI https://security.gentoo.org/glsa/202107-48 https://security.netapp.com/advisory/ntap-20210625-0005 https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142 https://access.redhat.com/securit • CWE-290: Authentication Bypass by Spoofing CWE-306: Missing Authentication for Critical Function •