CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 2CVE-2021-4095
https://notcve.org/view.php?id=CVE-2021-4095
A NULL pointer dereference was found in the Linux kernel's KVM when dirty ring logging is enabled without an active vCPU context. An unprivileged local attacker on the host may use this flaw to cause a kernel oops condition and thus a denial of service by issuing a KVM_XEN_HVM_SET_ATTR ioctl. This flaw affects Linux kernel versions prior to 5.17-rc1. Se encontró una desreferencia de puntero NULL en el KVM del kernel de Linux cuando se habilita el registro de anillo sucio sin un contexto de vCPU activo. Un atacante local no privilegiado en el host puede usar este fallo para causar una condición de oops del kernel y, por tanto, una denegación de servicio emitiendo un ioctl KVM_XEN_HVM_SET_ATTR. • http://www.openwall.com/lists/oss-security/2022/01/17/1 https://bugzilla.redhat.com/show_bug.cgi?id=2031194 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QIOQN7JJNN6ABIDGRSTVZA65MHRLMH2Q https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VT6573CGKVK3DU2632VVO5BVM4IU7SBV • CWE-476: NULL Pointer Dereference •
CVSS: 7.8EPSS: 0%CPEs: 21EXPL: 0CVE-2022-26490
https://notcve.org/view.php?id=CVE-2022-26490
st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters. La función st21nfca_connectivity_event_received en el archivo drivers/nfc/st21nfca/se.c en el kernel de Linux hasta la versión 5.16.12, presenta desbordamientos de búfer EVT_TRANSACTION debido a parámetros de longitud no confiables • https://github.com/torvalds/linux/commit/4fbcc1a4cb20fe26ad0225679c536c80f1648221 https://lists.debian.org/debian-lts-announce/2022/07/msg00000.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BG4J46EMFPDD5QHYXDUI3PJCZQ7HQAZR https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/C5AUUDGSDLGYU7SZSK4PFAN22NISQZBT https://security.netapp.com/advisory/ntap-20220429-0004 https://www.debian.org/security/2022/dsa-5127 https://www.debian.org/security/20 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 5.9EPSS: 0%CPEs: 29EXPL: 0CVE-2020-36516 – kernel: off-path attacker may inject data or terminate victim's TCP session
https://notcve.org/view.php?id=CVE-2020-36516
An issue was discovered in the Linux kernel through 5.16.11. The mixed IPID assignment method with the hash-based IPID assignment policy allows an off-path attacker to inject data into a victim's TCP session or terminate that session. Se ha detectado un problema en el kernel de Linux versiones hasta 5.16.11. El método de asignación de IPID mixto con la política de asignación de IPID basada en hash permite a un atacante fuera de la ruta inyectar datos en la sesión TCP de una víctima o terminar esa sesión. A TCP/IP packet spoofing attack flaw was found in the Linux kernel’s TCP/IP protocol, where a Man-in-the-Middle Attack (MITM) performs an IP fragmentation attack and an IPID collision. • https://dl.acm.org/doi/10.1145/3372297.3417884 https://security.netapp.com/advisory/ntap-20220331-0003 https://access.redhat.com/security/cve/CVE-2020-36516 https://bugzilla.redhat.com/show_bug.cgi?id=2059928 • CWE-290: Authentication Bypass by Spoofing CWE-327: Use of a Broken or Risky Cryptographic Algorithm •
CVSS: 5.5EPSS: 0%CPEs: 4EXPL: 0CVE-2022-25375
https://notcve.org/view.php?id=CVE-2022-25375
An issue was discovered in drivers/usb/gadget/function/rndis.c in the Linux kernel before 5.16.10. The RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. Attackers can obtain sensitive information from kernel memory. Se ha detectado un problema en el archivo drivers/usb/gadget/function/rndis.c en el kernel de Linux versiones anteriores a 5.16.10. El gadget USB RNDIS no comprueba el tamaño del comando RNDIS_MSG_SET. • http://www.openwall.com/lists/oss-security/2022/02/21/1 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.10 https://github.com/szymonh/rndis-co https://github.com/torvalds/linux/commit/38ea1eac7d88072bbffb630e2b3db83ca649b826 https://lists.debian.org/debian-lts-announce/2022/03/msg00011.html https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html https://www.debian.org/security/2022/dsa-5092 https://www.debian.org/security/2022/dsa-5096 • CWE-1284: Improper Validation of Specified Quantity in Input •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2021-20320
https://notcve.org/view.php?id=CVE-2021-20320
A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem. Se encontró un fallo en s390 eBPF JIT en la función bpf_jit_insn en el archivo arch/s390/net/bpf_jit_comp.c en el kernel de Linux. En este fallo, un atacante local con privilegios de usuario especiales puede omitir el verificador y puede conllevar a un problema de confidencialidad • https://bugzilla.redhat.com/show_bug.cgi?id=2010090 https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •