CVE-2020-10942 – kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field
https://notcve.org/view.php?id=CVE-2020-10942
24 Mar 2020 — In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls. En el kernel de Linux versiones anteriores a 5.5.8, la función get_raw_socket en el archivo drivers/vhost/net.c carece de una comprobación de un campo sk_family, que podría permitir a atacantes desencadenar una corrupción de pila del kernel por medio de llamadas de sistema diseñadas. A stack buffer overflow is... • http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-787: Out-of-bounds Write •
CVE-2020-9391
https://notcve.org/view.php?id=CVE-2020-9391
25 Feb 2020 — An issue was discovered in the Linux kernel 5.4 and 5.5 through 5.5.6 on the AArch64 architecture. It ignores the top byte in the address passed to the brk system call, potentially moving the memory break downwards when the application expects it to move upwards, aka CID-dcde237319e6. This has been observed to cause heap corruption with the GNU C Library malloc implementation. Se detectó un problema en el kernel de Linux versión 5.4 y versiones 5.5 hasta 5.5.6 sobre la arquitectura AArch64. Ignora el byte s... • http://www.openwall.com/lists/oss-security/2020/02/25/6 • CWE-787: Out-of-bounds Write •
CVE-2020-9383 – kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c
https://notcve.org/view.php?id=CVE-2020-9383
25 Feb 2020 — An issue was discovered in the Linux kernel 3.16 through 5.5.6. set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it, aka CID-2e90ca68b0d2. Se detectó un problema en el kernel de Linux versión 3.16 hasta la versión 5.5.6. La función set_fdc en el archivo drivers/block/floppy.c, conlleva a una lectura fuera de límites de wait_til_ready porque el índice FDC no es comprobado para errores antes de asignarlos, también s... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html • CWE-125: Out-of-bounds Read •
CVE-2020-8992
https://notcve.org/view.php?id=CVE-2020-8992
14 Feb 2020 — ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size. La función ext4_protect_reserved_inode en el archivo fs/ext4/block_validity.c en el kernel de Linux versiones hasta 5.5.3, permite a atacantes causar una denegación de servicio (soft lockup) por medio de un journal size diseñado. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-400: Uncontrolled Resource Consumption CWE-834: Excessive Iteration •
CVE-2020-8647 – kernel: out-of-bounds read in in vc_do_resize function in drivers/tty/vt/vt.c
https://notcve.org/view.php?id=CVE-2020-8647
06 Feb 2020 — There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vc_do_resize function in drivers/tty/vt/vt.c. Se presenta una vulnerabilidad de uso de la memoria previamente liberada en el kernel de Linux versiones hasta 5.5.2 en la función vc_do_resize en el archivo drivers/tty/vt/vt.c. A flaw was found in the Linux kernel’s virtual console resize functionality. An attacker with local access to virtual consoles can use the virtual console resizing code to gather kernel internal data struct... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-416: Use After Free •
CVE-2020-8648 – kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c
https://notcve.org/view.php?id=CVE-2020-8648
06 Feb 2020 — There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c. Se presenta una vulnerabilidad de uso de la memoria previamente liberada en el kernel de Linux versiones hasta 5.5.2, en la función n_tty_receive_buf_common en el archivo drivers/tty/n_tty.c. A use-after-free flaw was found in the Linux kernel console driver when using the copy-paste buffer. This flaw allows a local user to crash the system. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-416: Use After Free •
CVE-2020-8649 – kernel: invalid read location in vgacon_invert_region function in drivers/video/console/vgacon.c
https://notcve.org/view.php?id=CVE-2020-8649
06 Feb 2020 — There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the vgacon_invert_region function in drivers/video/console/vgacon.c. Se presenta una vulnerabilidad de uso de la memoria previamente liberada en el kernel de Linux versiones hasta 5.5.2, en la función vgacon_invert_region en el archivo drivers/video/console/vgacon.c. A flaw was found in the Linux kernel’s implementation of the invert video code on VGA consoles when a local attacker attempts to resize the console. An out-of-bounds r... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00039.html • CWE-416: Use After Free •
CVE-2019-14898 – kernel: incomplete fix for race condition between mmget_not_zero()/get_task_mm() and core dumping in CVE-2019-11599
https://notcve.org/view.php?id=CVE-2019-14898
04 Feb 2020 — The fix for CVE-2019-11599, affecting the Linux kernel before 5.0.10 was not complete. A local user could use this flaw to obtain sensitive information, cause a denial of service, or possibly have other unspecified impacts by triggering a race condition with mmget_not_zero or get_task_mm calls. La corrección para el CVE-2019-11599, que afectaba al kernel de Linux versiones anteriores a 5.0.10, no estaba completa. Un usuario local podría usar este fallo para conseguir infomación confidencial, causar una dene... • https://bugs.chromium.org/p/project-zero/issues/detail?id=1790 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-667: Improper Locking •
CVE-2020-8428
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 •
CVE-2019-20422
https://notcve.org/view.php?id=CVE-2019-20422
27 Jan 2020 — In the Linux kernel before 5.3.4, fib6_rule_lookup in net/ipv6/ip6_fib.c mishandles the RT6_LOOKUP_F_DST_NOREF flag in a reference-count decision, leading to (for example) a crash that was identified by syzkaller, aka CID-7b09c2d052db. En el kernel de Linux versiones anteriores a 5.3.4, la función fib6_rule_lookup en el archivo net/ipv6/ip6_fib.c maneja inapropiadamente el flag RT6_LOOKUP_F_DST_NOREF en una decisión de conteo de referencias, lo que conlleva a (por ejemplo) un bloqueo que fue identificado po... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.4 • CWE-755: Improper Handling of Exceptional Conditions •