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CVE-2020-25671

kernel: refcount leak in llcp_sock_connect()

A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 1 more
Products
Debian Linux Fedora Linux Kernel and 20 more
CVE-2020-25669

kernel: use-after-free read in sunkbd_reinit in drivers/input/keyboard/sunkbd.c

A vulnerability was found in the Linux Kernel where the function sunkbd_reinit having been scheduled by sunkbd_interrupt before sunkbd being freed. Though the dangling pointer is set to NULL in sunkbd_disconnect, there is still an alias in sunkbd_reinit causing Use After Free.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Debian Linux Netapp
Products
Debian Linux Linux Kernel Cloud Backup and 18 more
CVE-2020-25668

kernel: race condition in fg_console can lead to use-after-free in con_font_op

A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.

CVSS 3.1 · 7.0 High EPSS 1.0% KEV · Not listed
Vendors
Debian Linux Netapp
Products
Debian Linux Linux Kernel 500f and 23 more
CVE-2020-15025

ntp: Resource exhaustion via memory leak with CMAC keys

ntpd in ntp 4.2.8 before 4.2.8p15 and 4.3.x before 4.3.101 allows remote attackers to cause a denial of service (memory consumption) by sending packets, because memory is not freed in situations where a CMAC key is used and associated with a CMAC algorithm in the ntp.keys file.

CVSS 3.1 · 4.4 Medium EPSS 3.1% KEV · Not listed
Vendors
Netapp Ntp Opensuse and 1 more
Products
8300 8300 Firmware 8700 and 24 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-2020-11884

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-2019-25045

kernel: use-after-free in the XFRM subsystem related to an xfrm_state_fini() panic

An issue was discovered in the Linux kernel before 5.0.19. The XFRM subsystem has a use-after-free, related to an xfrm_state_fini panic, aka CID-dbb2483b2a46.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Aff 8300 Aff 8300 Firmware and 38 more
CVE-2019-25044

kernel: use-after-free in the block subsystem related to blk_mq_free_rqs and blk_cleanup_queue

The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Netapp
Products
Linux Kernel Cloud Backup H300e and 18 more
CVE-2019-20636

kernel: out-of-bounds write via crafted keycode table

In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Cloud Backup Fas 8300 and 21 more
CVE-2019-16995

kernel: Memory leak in hsr_dev_finalize() in net/hsr/hsr_device.c

In the Linux kernel before 5.0.3, a memory leak exits in hsr_dev_finalize() in net/hsr/hsr_device.c if hsr_add_port fails to add a port, which may cause denial of service, aka CID-6caabe7f197d.

CVSS 3.1 · 7.5 High EPSS 3.5% KEV · Not listed
Vendors
Linux Netapp Opensuse
Products
Linux Kernel Aff A700s Aff A700s Firmware and 24 more
CVE-2019-15538

kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c

An issue was discovered in xfs_setattr_nonsize in fs/xfs/xfs_iops.c in the Linux kernel through 5.2.9. XFS partially wedges when a chgrp fails on account of being out of disk quota. xfs_setattr_nonsize is failing to unlock the ILOCK after the xfs_qm_vop_chown_reserve call fails. This is primarily a local DoS attack vector, but it might result as well in remote DoS if the XFS filesystem is exported for instance via NFS.

CVSS 3.1 · 7.5 High EPSS 3.9% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 4 more
Products
Ubuntu Linux Debian Linux Fedora and 26 more
CVE-2019-14835

kernel: vhost-net: guest to host kernel escape during migration

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 5 more
Products
Ubuntu Linux Debian Linux Fedora and 46 more