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-2019-20422
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 •
CVE-2019-18282 – kernel: The flow_dissector feature allows device tracking
https://notcve.org/view.php?id=CVE-2019-18282
16 Jan 2020 — The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code. La función flow_dissector en el kernel de Linux 4.3 a 5.x anterior a ... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor CWE-330: Use of Insufficiently Random Values •
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 •
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 •
CVE-2019-20095 – kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c
https://notcve.org/view.php?id=CVE-2019-20095
30 Dec 2019 — mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c in the Linux kernel before 5.1.6 has some error-handling cases that did not free allocated hostcmd memory, aka CID-003b686ace82. This will cause a memory leak and denial of service. La función mwifiex_tm_cmd en el archivo drivers/net/wireless/marvell/mwifiex/cfg80211.c en el kernel de Linux versiones anteriores a la versión 5.1.6 tiene algunos casos de manejo de errores que no liberaron la memoria hostcmd asignada, también se conoce como CID-... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-401: Missing Release of Memory after Effective Lifetime CWE-772: Missing Release of Resource after Effective Lifetime •
CVE-2019-20096
https://notcve.org/view.php?id=CVE-2019-20096
30 Dec 2019 — In the Linux kernel before 5.1, there is a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service, aka CID-1d3ff0950e2b. En el kernel de Linux versiones anteriores a la versión 5.1, hay una pérdida de memoria en la función __feat_register_sp() en el archivo net/dccp/feat.c, lo que puede causar una denegación de servicio, también se conoce como CID-1d3ff0950e2b. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html • CWE-401: Missing Release of Memory after Effective Lifetime •