CVSS: 3.3EPSS: 0%CPEs: 4EXPL: 0CVE-2022-24448 – kernel: nfs_atomic_open() returns uninitialized data instead of ENOTDIR
https://notcve.org/view.php?id=CVE-2022-24448
04 Feb 2022 — An issue was discovered in fs/nfs/dir.c in the Linux kernel before 5.16.5. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor. Se ha detectado un problema en el archivo fs/nfs/dir.c en el kernel de Linux versiones anteriores a 5.16.5. Si una aplicación establece la bandera O_DIRECTORY, y trata de abrir un archivo r... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5 • CWE-755: Improper Handling of Exceptional Conditions CWE-908: Use of Uninitialized Resource •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2022-0264
https://notcve.org/view.php?id=CVE-2022-0264
04 Feb 2022 — A vulnerability was found in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. This flaws affects kernel versions < v5.16-rc6 Se encontró una vulnerabilidad en el verificador eBPF del kernel de Linux cuando son manejados estructuras de dato... • https://bugzilla.redhat.com/show_bug.cgi?id=2041547 • CWE-755: Improper Handling of Exceptional Conditions •
CVSS: 7.4EPSS: 0%CPEs: 35EXPL: 0CVE-2021-20322 – kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies
https://notcve.org/view.php?id=CVE-2021-20322
03 Feb 2022 — A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. Se encontró un fallo en el procesamiento de... • https://bugzilla.redhat.com/show_bug.cgi?id=2014230 • CWE-330: Use of Insufficiently Random Values •
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
03 Feb 2022 — 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 subsiste... • https://bugzilla.redhat.com/show_bug.cgi?id=1980646 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 7.0EPSS: 0%CPEs: 7EXPL: 3CVE-2021-4202
https://notcve.org/view.php?id=CVE-2021-4202
03 Feb 2022 — 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 lo... • http://www.openwall.com/lists/oss-security/2022/06/01/2 • 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
03 Feb 2022 — 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 s... • https://bugzilla.redhat.com/show_bug.cgi?id=1999544 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') 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
26 Jan 2022 — 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 actu... • https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=ec6af094ea28f0f2dda1a6a33b14cd57e36a9755 • CWE-415: Double Free •
CVSS: 4.9EPSS: 0%CPEs: 8EXPL: 2CVE-2021-4032
https://notcve.org/view.php?id=CVE-2021-4032
21 Jan 2022 — A vulnerability was found in the Linux kernel's KVM subsystem in arch/x86/kvm/lapic.c kvm_free_lapic when a failure allocation was detected. In this flaw the KVM subsystem may crash the kernel due to mishandling of memory errors that happens during VCPU construction, which allows an attacker with special user privilege to cause a denial of service. This flaw affects kernel versions prior to 5.15 rc7. Se ha encontrado una vulnerabilidad en el subsistema KVM del kernel de Linux en el archivo arch/x86/kvm/lapi... • https://bugzilla.redhat.com/show_bug.cgi?id=2027403 • CWE-459: Incomplete Cleanup •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-4155 – kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL
https://notcve.org/view.php?id=CVE-2021-4155
19 Jan 2022 — A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them. Se encontró un fallo de filtrado de datos en la forma en que XFS_IOC_ALLOCSP IOCTL en el sistema de archivos XFS permitía aumentar el tamaño de los archivos con un tamaño no alineado. Un atacante local podría usar este fallo para filtrar datos en el sistema de archivo... • https://access.redhat.com/security/cve/CVE-2021-4155 • CWE-131: Incorrect Calculation of Buffer Size •
CVSS: 5.5EPSS: 0%CPEs: 1EXPL: 0CVE-2021-46283
https://notcve.org/view.php?id=CVE-2021-46283
11 Jan 2022 — nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel before 5.12.13 allows local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace. La función nf_tables_newset en el archivo net/netfilter/nf_tables_api.c en el kernel de Linux versiones anteriores a 5.12.13, permite a usuarios locales causar una denegación de serv... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13 • CWE-665: Improper Initialization •