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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-2020-16599

binutils: Null Pointer Dereference in _bfd_elf_get_symbol_version_string could result in DoS

A Null Pointer Dereference vulnerability exists in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.35, in _bfd_elf_get_symbol_version_string, as demonstrated in nm-new, that can cause a denial of service via a crafted file.

CVSS 3.1 · 5.5 Medium EPSS 1.1% KEV · Not listed
Vendors
Gnu Netapp
Products
Binutils Cloud Backup Hci Management Node and 2 more
CVE-2020-16166

kernel: information exposure in drivers/char/random.c and kernel/time/timer.c

The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.

CVSS 3.1 · 3.7 Low EPSS 5.2% KEV · Not listed
Vendors
Canonical Debian Fedoraproject and 5 more
Products
Ubuntu Linux Debian Linux Fedora and 15 more
CVE-2020-15862

net-snmp: Improper Privilege Management in EXTEND MIB may lead to privileged commands execution

Net-SNMP through 5.8 has Improper Privilege Management because SNMP WRITE access to the EXTEND MIB provides the ability to run arbitrary commands as root.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Net-snmp Netapp and 1 more
Products
Ubuntu Linux Net-snmp Cloud Backup and 8 more
CVE-2020-14356

kernel: Use After Free vulnerability in cgroup BPF component

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS 1.0% KEV · Not listed
Vendors
Canonical Debian Linux and 3 more
Products
Ubuntu Linux Debian Linux Linux Kernel and 8 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-2020-12659

kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data coruption

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.

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 6 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-2019-9924

bash: BASH_CMD is writable in restricted bash shells

rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASH_CMDS, thus allowing the user to execute any command with the permissions of the shell.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Debian Gnu and 3 more
Products
Ubuntu Linux Debian Linux Bash and 9 more
CVE-2019-9162

kernel: out-of-bounds read/write in et/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module

In the Linux kernel before 4.20.12, net/ipv4/netfilter/nf_nat_snmp_basic_main.c in the SNMP NAT module has insufficient ASN.1 length checks (aka an array index error), making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmp_version and snmp_helper.

CVSS 3.1 · 7.8 High EPSS 1.1% KEV · Not listed
Vendors
Canonical Linux Netapp
Products
Ubuntu Linux Linux Kernel Cn1610 and 4 more
CVE-2019-9075

binutils: heap-based buffer overflow in function _bfd_archive_64_bit_slurp_armap in archive64.c

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.32. It is a heap-based buffer overflow in _bfd_archive_64_bit_slurp_armap in archive64.c.

CVSS 3.1 · 7.8 High EPSS 1.7% KEV · Not listed
Vendors
Canonical F5 Gnu and 1 more
Products
Ubuntu Linux Big-ip Access Policy Manager Big-ip Advanced Firewall Manager and 15 more
CVE-2019-9074

binutils: out-of-bound read in function bfd_getl32 in libbfd.c

An issue was discovered in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.32. It is an out-of-bounds read leading to a SEGV in bfd_getl32 in libbfd.c, when called from pex64_get_runtime_function in pei-x86_64.c.

CVSS 3.1 · 5.5 Medium EPSS 1.6% KEV · Not listed
Vendors
Canonical Gnu Netapp
Products
Ubuntu Linux Binutils Hci Management Node and 1 more