CVSS: 7.8EPSS: 0%CPEs: 21EXPL: 1CVE-2019-25044
https://notcve.org/view.php?id=CVE-2019-25044
14 May 2021 — 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-c3e2219216... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 2CVE-2021-33033 – kernel: use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c
https://notcve.org/view.php?id=CVE-2021-33033
14 May 2021 — The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value. El kernel de Linux versiones anteriores a 5.11.14, presenta un uso de la memoria previamente liberada en una función cipso_v4_genopt en el archivo net/ipv4/cipso_ipv4.c, porque el recuento de CIPSO y CALIPSO para las definiciones DOI es manejado inapropiadamente, tambié... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.14 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 3CVE-2021-33034 – kernel: use-after-free in net/bluetooth/hci_event.c when destroying an hci_chan
https://notcve.org/view.php?id=CVE-2021-33034
14 May 2021 — In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value. En el kernel de Linux versiones anteriores a 5.12.4, el archivo net/bluetooth/hci_event.c, presenta un uso de la memoria previamente liberada cuando se destruye un hci_chan, también se conoce como CID-5c4c8c954409. Esto conlleva a escribir un valor arbitrario A use-after-free flaw was found in hci_send_acl in the bluetooth host co... • https://github.com/Trinadh465/device_renesas_kernel_AOSP10_r33_CVE-2021-33034 • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 4EXPL: 0CVE-2021-23134 – Linux kernel llcp_sock_bind/connect use-after-free
https://notcve.org/view.php?id=CVE-2021-23134
12 May 2021 — Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability. Una vulnerabilidad de uso de la memoria previamente liberada en nfc sockets en el Kernel de Linux versiones anteriores a 5.12.4 permite a atacantes locales escalar sus privilegios. En configuraciones típicas, el problema solo puede ser desencadenado por un usuari... • https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d • CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 24EXPL: 0CVE-2021-3483
https://notcve.org/view.php?id=CVE-2021-3483
12 May 2021 — 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 ... • http://www.openwall.com/lists/oss-security/2021/04/07/1 • CWE-416: Use After Free •
CVSS: 7.4EPSS: 0%CPEs: 2EXPL: 2CVE-2021-29657 – KVM nested_svm_vmrun Double Fetch
https://notcve.org/view.php?id=CVE-2021-29657
12 May 2021 — arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests, aka CID-a58d9166a756. This occurs because of a TOCTOU race condition associated with a VMCB12 double fetch in nested_svm_vmrun. El archivo arch/x86/kvm/svm/nested.c en el kernel de Linux versiones anteriores a 5.11.12, presenta un uso de memoria previamente liberada en el que un invitado KVM de AMD puede omitir el control de acces... • http://packetstormsecurity.com/files/163324/KVM-nested_svm_vmrun-Double-Fetch.html • CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition CWE-416: Use After Free •
CVSS: 7.8EPSS: 0%CPEs: 31EXPL: 3CVE-2020-25670
https://notcve.org/view.php?id=CVE-2020-25670
12 May 2021 — 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 • CWE-416: Use After Free •
CVSS: 8.8EPSS: 0%CPEs: 6EXPL: 0CVE-2021-3491 – Linux kernel io_uring PROVIDE_BUFFERS MAX_RW_COUNT bypass
https://notcve.org/view.php?id=CVE-2021-3491
12 May 2021 — The io_uring subsystem in the Linux kernel allowed the MAX_RW_COUNT limit to be bypassed in the PROVIDE_BUFFERS operation, which led to negative values being usedin mem_rw when reading /proc/
CVSS: 8.8EPSS: 0%CPEs: 10EXPL: 0CVE-2021-3489 – Linux kernel eBPF RINGBUF map oversized allocation
https://notcve.org/view.php?id=CVE-2021-3489
12 May 2021 — The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer... • https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=4b81ccebaeee885ab1aa1438133f2991e3a2b6ea • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVSS: 8.8EPSS: 0%CPEs: 10EXPL: 3CVE-2021-3490 – Linux kernel eBPF bitwise ops ALU32 bounds tracking
https://notcve.org/view.php?id=CVE-2021-3490
12 May 2021 — The eBPF ALU32 bounds tracking for bitwise ops (AND, OR and XOR) in the Linux kernel did not properly update 32-bit bounds, which could be turned into out of bounds reads and writes in the Linux kernel and therefore, arbitrary code execution. This issue was fixed via commit 049c4e13714e ("bpf: Fix alu32 const subreg bound tracking on bitwise operations") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. The AND/OR issues were introduced by commit 3f50f132d840 ("bpf: Verifi... • https://github.com/pivik271/CVE-2021-3490 • CWE-20: Improper Input Validation CWE-125: Out-of-bounds Read CWE-787: Out-of-bounds Write •