![](/assets/img/cve_300x82_sin_bg.png)
CVE-2020-8428 – Debian Security Advisory 4667-1
https://notcve.org/view.php?id=CVE-2020-8428
28 Jan 2020 — fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed. El archivo fs/namei.c en el kernel de Linux versiones anteriores a 5.5, presenta una vulnerabilidad de uso de ... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-416: Use After Free •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19338 – Kernel: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135)
https://notcve.org/view.php?id=CVE-2019-19338
09 Jan 2020 — A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where, the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (TAA) error occurs. When a guest is running on a host CPU affected by the TAA flaw (TAA_NO=0), but is not affected by the MDS issue (MDS_NO=1), the guest was to clear the affected buffers by using a VERW instruction mechanism. But when the MDS_NO=1 bit was exported to the guests, the guests did not use the VERW m... • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19338 • CWE-203: Observable Discrepancy CWE-385: Covert Timing Channel •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19332 – Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid
https://notcve.org/view.php?id=CVE-2019-19332
09 Jan 2020 — An out-of-bounds memory write issue was found in the Linux Kernel, version 3.13 through 5.4, in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service. Se encontró un problema de escritura de memoria fuera de límites en el kernel de Linux, versiones 3.13 hasta 5.4, en la manera en que el... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-787: Out-of-bounds Write •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19965 – Ubuntu Security Notice USN-4284-1
https://notcve.org/view.php?id=CVE-2019-19965
25 Dec 2019 — In the Linux kernel through 5.4.6, there is a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5. En el kernel de Linux versiones hasta 5.4.6, se presenta una desreferencia del puntero NULL en el archivo drivers/scsi/libsas/sas_discover.c debido a un manejo inapropiado de la desconexión del puerto durante la detección, relacionado con una condición de carrera baja PHY, tambié... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-476: NULL Pointer Dereference •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19947 – Ubuntu Security Notice USN-4427-1
https://notcve.org/view.php?id=CVE-2019-19947
23 Dec 2019 — In the Linux kernel through 5.4.6, there are information leaks of uninitialized memory to a USB device in the drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c driver, aka CID-da2311a6385c. En el kernel de Linux versiones hasta 5.4.6, se presenta un filtrado de información de la memoria no inicializada hacia un dispositivo USB en el archivo controlador drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c, también se conoce como CID-da2311a6385c. Timothy Michaud discovered that the i915 graphics driver in the Lin... • http://www.openwall.com/lists/oss-security/2019/12/24/1 • CWE-908: Use of Uninitialized Resource •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19241 – Linux 5.3 - Privilege Escalation via io_uring Offload of sendmsg() onto Kernel Thread with Kernel Creds
https://notcve.org/view.php?id=CVE-2019-19241
16 Dec 2019 — In the Linux kernel before 5.4.2, the io_uring feature leads to requests that inadvertently have UID 0 and full capabilities, aka CID-181e448d8709. This is related to fs/io-wq.c, fs/io_uring.c, and net/socket.c. For example, an attacker can bypass intended restrictions on adding an IPv4 address to the loopback interface. This occurs because IORING_OP_SENDMSG operations, although requested in the context of an unprivileged user, are sometimes performed by a kernel worker thread without considering that conte... • https://packetstorm.news/files/id/155669 •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19767 – kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry related to fs/ext4/inode.c and fs/ext4/super.c
https://notcve.org/view.php?id=CVE-2019-19767
12 Dec 2019 — The Linux kernel before 5.4.2 mishandles ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163. El kernel de Linux versión anterior a 5.4.2 maneja inapropiadamente la función ext4_expand_extra_isize, como es demostrado por un error de uso de la memoria previamente liberada en las funciones __ext4_expand_extra_isize y ext4_xattr_set_entry, relacionadas con los archivos fs/ex... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-416: Use After Free •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19768 – kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c
https://notcve.org/view.php?id=CVE-2019-19768
12 Dec 2019 — In the Linux kernel 5.4.0-rc2, there is a use-after-free (read) in the __blk_add_trace function in kernel/trace/blktrace.c (which is used to fill out a blk_io_trace structure and place it in a per-cpu sub-buffer). En el kernel de Linux versión 5.4.0-rc2, se presenta un uso de la memoria previamente liberada en la función __blk_add_trace en el archivo kernel/trace/blktrace.c (que se usa para completar una estructura blk_io_trace y colocarla en un per-cpu sub-buffer). A use-after-free vulnerability was found ... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html • CWE-416: Use After Free •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19448 – Ubuntu Security Notice USN-4578-1
https://notcve.org/view.php?id=CVE-2019-19448
08 Dec 2019 — In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure. En el kernel de Linux versiones 5.0.21 y 5.3.11, montando una imagen de sistema de archivos btrfs diseñada, al realizar algunas operaciones y luego haciendo una llamada de sistem... • https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19448 • CWE-416: Use After Free •
![](/assets/img/cve_300x82_sin_bg.png)
CVE-2019-19447 – kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c
https://notcve.org/view.php?id=CVE-2019-19447
08 Dec 2019 — In the Linux kernel 5.0.21, mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c. En el kernel de Linux versión 5.0.21, montando una imagen de sistema de archivos ext4 diseñada, al realizar algunas operaciones y desmontarla puede conllevar a un uso de la memoria previamente liberada en la función ext4_put_super en el archivo fs/ext4/super.c, relacionado con la fun... • https://github.com/Trinadh465/linux-4.19.72_CVE-2019-19447 • CWE-416: Use After Free •