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CVE-2020-29370

kernel: Race condition in SLUB bulk alloc slowpath

An issue was discovered in kmem_cache_alloc_bulk in mm/slub.c in the Linux kernel before 5.5.11. The slowpath lacks the required TID increment, aka CID-fd4d9c7d0c71.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Cloud Backup H410c and 7 more
CVE-2020-29369

kernel: race condition between expand_downwards and expand_upwards and page-table free operations from an munmap call

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Hci Compute Node Hci Management Node and 2 more
CVE-2020-29368

kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check

An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Cloud Backup Element Software and 8 more
CVE-2020-25645

kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints

A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.

CVSS 3.1 · 7.5 High EPSS 2.4% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 7 more
CVE-2020-25221

kernel: incorrect vsyscall page reference counting in get_gate_page function in mm/gup.c

get_gate_page in mm/gup.c in the Linux kernel 5.7.x and 5.8.x before 5.8.7 allows privilege escalation because of incorrect reference counting (caused by gate page mishandling) of the struct page that backs the vsyscall page. The result is a refcount underflow. This can be triggered by any 64-bit process that can use ptrace() or process_vm_readv(), aka CID-9fa2dd946743.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Cloud Backup Hci Compute Node and 3 more
CVE-2020-13143

kernel: usb: gadget: illegal array access in binding with UDC

gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c in the Linux kernel 3.16 through 5.6.13 relies on kstrdup without considering the possibility of an internal '\0' value, which allows attackers to trigger an out-of-bounds read, aka CID-15753588bcd4.

CVSS 3.1 · 6.5 Medium EPSS 5.2% KEV · Not listed
Vendors
Canonical Debian Linux and 2 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 35 more
CVE-2020-12771

kernel: deadlock if a coalescing operation fails in btree_gc_coalesce function in drivers/md/bcache/btree.c

An issue was discovered in the Linux kernel through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 34 more
CVE-2020-12770

kernel: sg_write function lacks an sg_remove_request call in a certain failure case

An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 39 more
CVE-2020-12653

kernel: buffer overflow in mwifiex_cmd_append_vsie_tlv function in drivers/net/wireless/marvell/mwifiex/scan.c

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.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp and 2 more
Products
Debian Linux Linux Kernel A700s and 39 more
CVE-2020-12465

kernel: buffer overflow in mt76_add_fragment function in drivers/net/wireless/mediatek/mt76/dma.c

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.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Active Iq Unified Manager Aff Baseboard Management Controller and 7 more
CVE-2020-12464

kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c

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.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Active Iq Unified Manager Aff A700s and 8 more
CVE-2020-11884

Kernel: s390: page table upgrade in secondary address mode may lead to privilege escalation

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.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 3 more
Products
Ubuntu Linux Debian Linux Fedora and 35 more
CVE-2020-10690

kernel: use-after-free in cdev_put() when a PTP device is removed while it's chardev is open

There is a use-after-free in kernel versions before 5.5 due to a race condition between the release of ptp_clock and cdev while resource deallocation. When a (high privileged) process allocates a ptp device file (like /dev/ptpX) and voluntarily goes to sleep. During this time if the underlying device is removed, it can cause an exploitable condition as the process wakes up to terminate and clean all attached files. The system crashes due to the cdev structure being invalid (as already freed) which is pointed to by the inode.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 31 more
CVE-2019-1559

0-byte record padding oracle

If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q).

CVSS 3.1 · 5.9 Medium EPSS 17.1% KEV · Not listed
Vendors
Canonical Debian F5 and 10 more
Products
Ubuntu Linux Debian Linux Big-ip Access Policy Manager and 88 more
CVE-2019-19069

kernel: A memory leak in the fastrpc_dma_buf_attach() function in drivers/misc/fastrpc.c allows for a DoS

A memory leak in the fastrpc_dma_buf_attach() function in drivers/misc/fastrpc.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering dma_get_sgtable() failures, aka CID-fc739a058d99.

CVSS 3.1 · 7.5 High EPSS 3.5% KEV · Not listed
Vendors
Broadcom Canonical Linux and 1 more
Products
Fabric Operating System Ubuntu Linux Linux Kernel and 18 more
CVE-2019-19063

kernel: Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c allow for a DoS

Two memory leaks in the rtl_usb_probe() function in drivers/net/wireless/realtek/rtlwifi/usb.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption), aka CID-3f9361695113.

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Vendors
Broadcom Canonical Fedoraproject and 5 more
Products
Brocade Fabric Operating System Firmware Ubuntu Linux Fedora and 19 more
CVE-2019-19061

kernel: A memory leak in the adis_update_scan_mode_burst() function in drivers/iio/imu/adis_buffer.c allows for a DoS

A memory leak in the adis_update_scan_mode_burst() function in drivers/iio/imu/adis_buffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-9c0530e898f3.

CVSS 3.1 · 7.5 High EPSS 3.4% KEV · Not listed
Vendors
Broadcom Canonical Linux and 1 more
Products
Brocade Fabric Operating System Firmware Ubuntu Linux Linux Kernel and 14 more
CVE-2019-19060

kernel: A memory leak in the adis_update_scan_mode() function in drivers/iio/imu/adis_buffer.c allows for a DoS

A memory leak in the adis_update_scan_mode() function in drivers/iio/imu/adis_buffer.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-ab612b1daf41.

CVSS 3.1 · 7.5 High EPSS 3.6% KEV · Not listed
Vendors
Broadcom Canonical Linux and 2 more
Products
Brocade Fabric Operating System Firmware Ubuntu Linux Linux Kernel and 15 more
CVE-2019-19057

kernel: Two memory leaks in the mwifiex_pcie_init_evt_ring() function in drivers/net/wireless/marvell/mwifiex/pcie.c allows for a DoS

Two memory leaks in the mwifiex_pcie_init_evt_ring() function in drivers/net/wireless/marvell/mwifiex/pcie.c in the Linux kernel through 5.3.11 allow attackers to cause a denial of service (memory consumption) by triggering mwifiex_map_pci_memory() failures, aka CID-d10dcb615c8e.

CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Vendors
Broadcom Canonical Debian and 5 more
Products
Brocade Fabric Operating System Firmware Ubuntu Linux Debian Linux and 18 more