CVSS: 7.0EPSS: 0%CPEs: 7EXPL: 3CVE-2021-4202
https://notcve.org/view.php?id=CVE-2021-4202
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem. Se encontró un fallo de uso de memoria previamente liberada en la función nci_request en el archivo net/nfc/nci/core.c en NFC Controller Interface (NCI) en el kernel de Linux. este fallo podría permitir a un atacante local con privilegios de usuario causar un problema de carrera de datos mientras es retirado el dispositivo, conllevando a un problema de escalada de privilegios • http://www.openwall.com/lists/oss-security/2022/06/01/2 http://www.openwall.com/lists/oss-security/2022/06/04/2 http://www.openwall.com/lists/oss-security/2022/06/07/2 https://bugzilla.redhat.com/show_bug.cgi?id=2036682 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3e3b5dfcd16a3e254aab61bd1e8c417dd4503102 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=48b71a9e66c2eab60564b1b1c85f4928ed04e406 https://git.kernel.org/pub • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.9EPSS: 0%CPEs: 36EXPL: 1CVE-2021-3752 – kernel: possible use-after-free in bluetooth module
https://notcve.org/view.php?id=CVE-2021-3752
A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se ha encontrado un fallo de uso de memoria previamente liberada en el subsistema Bluetooth del kernel de Linux en la forma en que las llamadas de usuario son conectadas al socket y son desconectadas simultáneamente debido a una condición de carrera. Este fallo permite a un usuario bloquear el sistema o escalar sus privilegios. • https://bugzilla.redhat.com/show_bug.cgi?id=1999544 https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://lore.kernel.org/lkml/20211115165435.133245729%40linuxfoundation.org https://security.netapp.com/advisory/ntap-20220318-0009 https://www.debian.org/security/2022/dsa-5096 https://www.openwall.com/lists/oss-security/2021/09/15/4 https://www.oracle.com/security-alerts/cpujul2022.html https:/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.0EPSS: 0%CPEs: 31EXPL: 1CVE-2021-3640 – kernel: use-after-free vulnerability in function sco_sock_sendmsg()
https://notcve.org/view.php?id=CVE-2021-3640
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system. Se encontró un fallo de uso de memoria previamente liberada en la función sco_sock_sendmsg() del subsistema HCI del kernel de Linux en la forma en que el usuario llama a ioct UFFDIO_REGISTER o de otra manera desencadena una condición de carrera de la llamada sco_conn_del() junto con la llamada sco_sock_sendmsg() con la página de memoria de fallo controlable esperada. Un usuario local privilegiado podría usar este fallo para bloquear el sistema o escalar sus privilegios en el sistema • https://bugzilla.redhat.com/show_bug.cgi?id=1980646 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951 https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951 https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://security.netapp.com/advisory/ntap-20220419-0003 https://ubuntu.com/security/CVE-2021- • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 20EXPL: 2CVE-2022-24122
https://notcve.org/view.php?id=CVE-2022-24122
kernel/ucount.c in the Linux kernel 5.14 through 5.16.4, when unprivileged user namespaces are enabled, allows a use-after-free and privilege escalation because a ucounts object can outlive its namespace. El archivo kernel/ucount.c en el kernel de Linux versiones 5.14 hasta 5.16.4, cuando los espacios de nombres de los usuarios no privilegiados están habilitados, permite un uso de memoria previamente liberada y una escalada de privilegios porque un objeto ucounts puede sobrevivir a su espacio de nombres • https://github.com/meowmeowxw/CVE-2022-24122 https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f9d87929d451d3e649699d0f1d74f71f77ad38f5 https://github.com/torvalds/linux/commit/f9d87929d451d3e649699d0f1d74f71f77ad38f5 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSR3AI2IQGRKZCHNKF6S25JGDKUEAWWL https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVSZKUJAZ2VN6LJ35J2B6YD6BOPQTU3B https://security.netapp.com/advisory/ntap-20220221-0001 htt • CWE-416: Use After Free •
CVSS: 7.2EPSS: 0%CPEs: 17EXPL: 0CVE-2021-22600 – Linux Kernel Privilege Escalation Vulnerability
https://notcve.org/view.php?id=CVE-2021-22600
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 Un bug de doble liberación en la función packet_set_ring() en el archivo net/packet/af_packet.c puede ser explotado por un usuario local mediante syscalls diseñados para escalar privilegios o denegar el servicio. Es recomendado actualizar el kernel más allá de las versiones afectadas o reconstruir más allá de ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 Linux Kernel contains a flaw in the packet socket (AF_PACKET) implementation which could lead to incorrectly freeing memory. A local user could exploit this for denial-of-service (DoS) or possibly for privilege escalation. • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://security.netapp.com/advisory/ntap-20230110-0002 https://www.debian.org/security/2022/dsa-5096 • CWE-415: Double Free •