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-2022-0435

kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS

A stack overflow flaw was found in the Linux kernel's TIPC protocol functionality in the way a user sends a packet with malicious content where the number of domain member nodes is higher than the 64 allowed. This flaw allows a remote user to crash the system or possibly escalate their privileges if they have access to the TIPC network.

CVSS 3.1 · 8.8 High EPSS 67.8% KEV · Not listed

Vendors

Fedoraproject Linux Netapp and 2 more

Products

Fedora Linux Kernel H300e and 37 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-2021-4157

kernel: Buffer overwrite in decode_nfs_fh function

An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.

CVSS 3.1 · 8.0 High EPSS 1.6% KEV · Not listed

Vendors

Fedoraproject Linux Netapp and 2 more

Products

Fedora Linux Kernel H300e and 15 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-2021-43267

kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

CVSS 3.1 · 9.8 Critical EPSS 57.9% KEV · Not listed

Vendors

Fedoraproject Linux Netapp and 1 more

Products

Fedora Linux Kernel H300e and 16 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-2021-42377

busybox: an attacker-controlled pointer free in hush applet leads to denial of service and possible code execution when processing a crafted shell command

An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.

CVSS 3.1 · 9.8 Critical EPSS 3.6% KEV · Not listed

Vendors

Busybox Fedoraproject Netapp

Products

Busybox Fedora Cloud Backup and 16 more

CVE-2021-42376

busybox: NULL pointer dereference in hush applet leads to denial of service when processing a crafted shell command

A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Busybox Fedoraproject Netapp

Products

Busybox Fedora Cloud Backup and 16 more

CVE-2021-42373

busybox: NULL pointer dereference in man applet leads to denial of service when a section name is supplied but no page argument is given

A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed

Vendors

Busybox Fedoraproject Netapp

Products

Busybox Fedora Cloud Backup and 16 more