CVE-2020-12659 – kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data coruption
https://notcve.org/view.php?id=CVE-2020-12659
05 May 2020 — An issue was discovered in the Linux kernel before 5.6.7. xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) because of a lack of headroom validation. Se detectó un problema en el kernel de Linux versiones anteriores a 5.6.7. En la función xdp_umem_reg en el archivo net/xdp/xdp_umem.c se presenta una escritura fuera de límites (por un usuario con la capacidad CAP_NET_ADMIN) debido a una falta de comprobación del headroom. An out-of-bounds (OOB) memory... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-787: Out-of-bounds Write •
CVE-2020-12657 – kernel: use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body
https://notcve.org/view.php?id=CVE-2020-12657
05 May 2020 — An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body. Se detectó un problema en el kernel de Linux versiones anteriores a 5.6.5. Se presenta un uso de la memoria previamente liberada en el archivo block/bfq-iosched.c relacionado con la función bfq_idle_slice_timer_body. A flaw was found in the Linux kernel's implementation of the BFQ IO scheduler. • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-416: Use After Free •
CVE-2020-12656 – Ubuntu Security Notice USN-4485-1
https://notcve.org/view.php?id=CVE-2020-12656
05 May 2020 — gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory leak. Note: This was disputed with the assertion that the issue does not grant any access not already available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of memory they li... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2020-12655 – kernel: sync of excessive duration via an XFS v5 image with crafted metadata
https://notcve.org/view.php?id=CVE-2020-12655
05 May 2020 — An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10. Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767. Se detectó un problema en la función xfs_agf_verify en el archivo fs/xfs/libxfs/xfs_alloc.c en el kernel de Linux versiones hasta 5.6.10. Los atacantes pueden desencadenar una sincronización de duración excesiva por medio de una imagen XFS v5 con metadatos diseñados, también se conoce com... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVE-2020-12654 – kernel: heap-based buffer overflow in mwifiex_ret_wmm_get_status function in drivers/net/wireless/marvell/mwifiex/wmm.c
https://notcve.org/view.php?id=CVE-2020-12654
05 May 2020 — An issue was found in Linux kernel before 5.5.4. mwifiex_ret_wmm_get_status() in drivers/net/wireless/marvell/mwifiex/wmm.c allows a remote AP to trigger a heap-based buffer overflow because of an incorrect memcpy, aka CID-3a9b153c5591. Se detectó un problema en el kernel de Linux versiones anteriores a 5.5.4. En la función mwifiex_ret_wmm_get_status() en el archivo drivers/net/wireless/marvell/mwifiex/wmm.c permite a un AP remoto desencadenar un desbordamiento del búfer en la región heap de la memoria debi... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •
CVE-2020-12653 – kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c
https://notcve.org/view.php?id=CVE-2020-12653
05 May 2020 — An issue was found in Linux kernel before 5.5.4. The mwifiex_cmd_append_vsie_tlv() function in drivers/net/wireless/marvell/mwifiex/scan.c allows local users to gain privileges or cause a denial of service because of an incorrect memcpy and buffer overflow, aka CID-b70261a288ea. Se detectó un problema en el kernel de Linux versiones anteriores a 5.5.4. La función mwifiex_cmd_append_vsie_tlv() en el archivo drivers/net/wireless/marvell/mwifiex/scan.c permite a usuarios locales alcanzar privilegios o causar u... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •
CVE-2020-12465 – kernel: buffer overflow in mt76_add_fragment function in drivers/net/wireless/mediatek/mt76/dma.c
https://notcve.org/view.php?id=CVE-2020-12465
29 Apr 2020 — An array overflow was discovered in mt76_add_fragment in drivers/net/wireless/mediatek/mt76/dma.c in the Linux kernel before 5.5.10, aka CID-b102f0c522cf. An oversized packet with too many rx fragments can corrupt memory of adjacent pages. Se descubrió un desbordamiento de matriz en la función mt76_add_fragment en el archivo drivers/net/wireless/mediatek/mt76/dma.c en el kernel de Linux versiones anteriores a la versión 5.5.10, también se conoce como CID-b102f0c522cf. Un paquete de gran tamaño con muchos fr... • https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.10 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2020-12464 – kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c
https://notcve.org/view.php?id=CVE-2020-12464
29 Apr 2020 — usb_sg_cancel in drivers/usb/core/message.c in the Linux kernel before 5.6.8 has a use-after-free because a transfer occurs without a reference, aka CID-056ad39ee925. a función usb_sg_cancel en el archivo drivers/usb/core/message.c en el kernel de Linux versiones anteriores a la versión 5.6.8, tiene un uso de la memoria previamente liberada porque se produce una transferencia sin una referencia, también se conoce como CID-056ad39ee925. A use-after-free flaw was found in usb_sg_cancel in drivers/usb/core/mes... • http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html • CWE-416: Use After Free •
CVE-2020-11884 – Kernel: s390: page table upgrade in secondary address mode may lead to privilege escalation
https://notcve.org/view.php?id=CVE-2020-11884
28 Apr 2020 — In the Linux kernel 4.19 through 5.6.7 on the s390 platform, code execution may occur because of a race condition, as demonstrated by code in enable_sacf_uaccess in arch/s390/lib/uaccess.c that fails to protect against a concurrent page table upgrade, aka CID-3f777e19d171. A crash could also occur. En el kernel de Linux versión 4.9 hasta la versión 5.6.7, en la plataforma s390, una ejecución de código puede presentarse debido a una condición de carrera, como es demostrado por el código en la función enable_... • https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=215d1f3928713d6eaec67244bcda72105b898000 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-1251: Mirrored Regions with Different Values •
CVE-2020-11725
https://notcve.org/view.php?id=CVE-2020-11725
12 Apr 2020 — snd_ctl_elem_add in sound/core/control.c in the Linux kernel through 5.6.3 has a count=info->owner line, which later affects a private_size*count multiplication for unspecified "interesting side effects." NOTE: kernel engineers dispute this finding, because it could be relevant only if new callers were added that were unfamiliar with the misuse of the info->owner field to represent data unrelated to the "owner" concept. The existing callers, SNDRV_CTL_IOCTL_ELEM_ADD and SNDRV_CTL_IOCTL_ELEM_REPLACE, have be... • https://github.com/torvalds/linux/blob/3b2549a3740efb8af0150415737067d87e466c5b/sound/core/control.c#L1434-L1474 •