CVE-2022-0516

kernel: missing check in ioctl allows kernel memory read/write

A vulnerability was found in kvm_s390_guest_sida_op in the arch/s390/kvm/kvm-s390.c function in KVM for s390 in the Linux kernel. This flaw allows a local attacker with a normal user privilege to obtain unauthorized memory write access. This flaw affects Linux kernel versions prior to 5.17-rc4.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Linux and 2 more

Products

Debian Linux Fedora Linux Kernel and 29 more

CVE-2022-0396

DoS from specifically crafted TCP packets

BIND 9.16.11 -> 9.16.26, 9.17.0 -> 9.18.0 and versions 9.16.11-S1 -> 9.16.26-S1 of the BIND Supported Preview Edition. Specifically crafted TCP streams can cause connections to BIND to remain in CLOSE_WAIT status for an indefinite period of time, even after the client has terminated the connection.

CVSS 3.1 · 5.3 Medium EPSS 2.7% KEV · Not listed

Vendors

Fedoraproject Isc Netapp and 2 more

Products

Fedora Bind H300e and 17 more

CVE-2022-0330

kernel: possible privileges escalation due to missing TLB flush

A random memory access flaw was found in the Linux kernel's GPU i915 kernel driver functionality in the way a user may run malicious code on the GPU. This flaw allows a local user to crash the system or escalate their privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Fedoraproject Linux Netapp and 1 more

Products

Fedora Linux Kernel H300e and 49 more

CVE-2021-4203

kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.

CVSS 3.1 · 6.8 Medium EPSS 1.7% KEV · Not listed

Vendors

Linux Netapp Oracle and 1 more

Products

Linux Kernel A700s A700s Firmware and 22 more

CVE-2021-4197

kernel: cgroup: Use open-time creds and namespace for migration perm checks

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. 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% KEV · Not listed

Vendors

Broadcom Debian Linux and 3 more

Products

Brocade Fabric Operating System Firmware Debian Linux Linux Kernel and 13 more

CVE-2021-4083

kernel: fget: check that the fd still exists after getting a ref to it

A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed

Vendors

Debian Linux Netapp and 2 more

Products

Debian Linux Linux Kernel H300e and 27 more

CVE-2021-4044

Invalid handling of X509_verify_cert() internal errors in libssl

Internally libssl in OpenSSL calls X509_verify_cert() on the client side to verify a certificate supplied by a server. That function may return a negative return value to indicate an internal error (for example out of memory). Such a negative return value is mishandled by OpenSSL and will cause an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate success and a subsequent call to SSL_get_error() to return the value SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be returned by OpenSSL if the application has previously called SSL_CTX_set_cert_verify_callback(). Since most applications do not do this the SSL_ERROR_WANT_RETRY_VERIFY return value from SSL_get_error() will be totally unexpected and applications may not behave correctly as a result. The exact behaviour will depend on the application but it could result in crashes, infinite loops or other similar incorrect responses. This issue is made more serious in combination with a separate bug in OpenSSL 3.0 that will cause X509_verify_cert() to indicate an internal error when processing a certificate chain. This will occur where a certificate does not include the Subject Alternative Name extension but where a Certificate Authority has enforced name constraints. This issue can occur even with valid chains. By combining the two issues an attacker could induce incorrect, application dependent behaviour. Fixed in OpenSSL 3.0.1 (Affected 3.0.0).

CVSS 3.1 · 7.5 High EPSS 50.1% KEV · Not listed

Vendors

Netapp Nodejs Openssl

Products

500f 500f Firmware A250 and 23 more

CVE-2021-45868

kernel: fs/quota/quota_tree.c does not validate the block number in the quota tree

In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.

CVSS 3.1 · 5.5 Medium EPSS 1.3% KEV · Not listed

Vendors

Linux Netapp

Products

Linux Kernel H300e H300e Firmware and 14 more

CVE-2021-45485

kernel: information leak in the IPv6 implementation

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.

CVSS 3.1 · 7.5 High EPSS 3.8% KEV · Not listed

Vendors

Linux Netapp Oracle and 1 more

Products

Linux Kernel Aff A400 Aff A400 Firmware and 43 more

CVE-2021-45469

kernel: out-of-bounds memory access in __f2fs_setxattr() in fs/f2fs/xattr.c when an inode has an invalid last xattr entry

In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11, there is an out-of-bounds memory access when an inode has an invalid last xattr entry.

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 16 more

CVE-2021-45100

kernel: ksmbd server communicates in cleartext even though encryption has been enabled due to a violation of the SMB protocol specification

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Ksmbd Project Linux Netapp

Products

Ksmbd Linux Kernel H300e and 15 more

CVE-2021-44733

kernel: use-after-free in the TEE subsystem

A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

CVSS 3.1 · 7.0 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Linux and 2 more

Products

Debian Linux Fedora Linux Kernel and 17 more

CVE-2021-43976

kernel: mwifiex_usb_recv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS via crafted USB device

In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).

CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Linux and 3 more

Products

Debian Linux Fedora Linux Kernel and 21 more

CVE-2021-43057

kernel: use-after-free in the SELinux handler for PTRACE_TRACEME

An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Linux Netapp

Products

Linux Kernel H300e H300e Firmware and 14 more

CVE-2021-42327

kernel: heap-based buffer overflow in dp_link_settings_write() in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c

dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parse_write_buffer_into_params when it uses the size of copy_from_user to copy a userspace buffer into a 40-byte heap buffer.

CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed

Vendors

Fedoraproject Linux Netapp

Products

Fedora Linux Kernel H300e and 15 more

CVE-2021-42252

kernel: memory overwrite in the kernel with potential privileges execution

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Linux Netapp

Products

Linux Kernel Cloud Backup H300e and 17 more

CVE-2021-42008

kernel: slab out-of-bounds write in decode_data() in drivers/net/hamradio/6pack.c

The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.

CVSS 3.1 · 7.8 High EPSS 1.6% KEV · Not listed

Vendors

Debian Linux Netapp

Products

Debian Linux Linux Kernel H300e and 17 more

CVE-2021-41864

kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() in kernel/bpf/stackmap.c leads to out-of-bounds write

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed

Vendors

Debian Fedoraproject Linux and 2 more

Products

Debian Linux Fedora Linux Kernel and 22 more

CVE-2021-41073

kernel: local user privilege escalation via loop_rw_iter in fs/io_uring.c

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.

CVSS 3.1 · 7.8 High EPSS 1.8% KEV · Not listed

Vendors

Debian Fedoraproject Linux and 1 more

Products

Debian Linux Fedora Linux Kernel and 18 more

CVE-2021-3772

kernel: sctp: Invalid chunks may be used to remotely remove existing associations

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.

CVSS 3.1 · 6.5 Medium EPSS 1.2% KEV · Not listed

Vendors

Debian Linux Netapp and 2 more

Products

Debian Linux Linux Kernel E-series Santricity Os Controller and 23 more