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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-2022-0494

kernel: information leak in scsi_ioctl()

A kernel information leak flaw was identified in the scsi_ioctl function in drivers/scsi/scsi_ioctl.c in the Linux kernel. This flaw allows a local attacker with a special user privilege (CAP_SYS_ADMIN or CAP_SYS_RAWIO) to create issues with confidentiality.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Redhat
Products
Debian Linux Linux Kernel Enterprise Linux and 2 more
CVE-2022-0487

kernel: use after free in moxart_remove

A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove in drivers/memstick/host/rtsx_usb_ms.c in memstick in the Linux kernel. In this flaw, a local attacker with a user privilege may impact system Confidentiality. This flaw affects kernel versions prior to 5.14 rc1.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Linux Redhat
Products
Debian Linux Linux Kernel Enterprise Linux
CVE-2022-0480

kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion

A flaw was found in the filelock_init in fs/locks.c function in the Linux kernel. This issue can lead to host memory exhaustion due to memcg not limiting the number of Portable Operating System Interface (POSIX) file locks.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Eus
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-2022-0330

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-2022-0322

kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.c

A flaw was found in the sctp_make_strreset_req function in net/sctp/sm_make_chunk.c in the SCTP network protocol in the Linux kernel with a local user privilege access. In this flaw, an attempt to use more buffer than is allocated triggers a BUG_ON issue, leading to a denial of service (DOS).

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Linux Oracle and 1 more
Products
Fedora Linux Kernel Communications Cloud Native Core Binding Support Function and 3 more
CVE-2022-0168

kernel: smb2_ioctl_query_info NULL pointer dereference

A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Eus and 1 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-2021-4155

kernel: xfs: raw block device data leak in XFS_IOC_ALLOCSP IOCTL

A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to leak data on the XFS filesystem otherwise not accessible to them.

CVSS 3.1 · 5.5 Medium EPSS < 1% KEV · Not listed
Vendors
Linux Redhat
Products
Linux Kernel Enterprise Linux Rhel Aus and 6 more
CVE-2021-4154

kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout

A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.

CVSS 3.1 · 8.8 High EPSS 1.2% KEV · Not listed
Vendors
Linux Netapp Redhat
Products
Linux Kernel Hci Baseboard Management Controller Enterprise Linux and 3 more
CVE-2021-4093

kernel: KVM: SVM: out-of-bounds read/write in sev_es_string_io

A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Vendors
Canonical Fedoraproject Linux and 1 more
Products
Ubuntu Linux Fedora Linux Kernel and 1 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-2021-4028

kernel: use-after-free in RDMA listen()

A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Linux Redhat Suse
Products
Linux Kernel Enterprise Linux Rhel Aus and 6 more
CVE-2021-4002

kernel: possible leak or coruption of data residing on hugetlbfs

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.

CVSS 3.1 · 4.4 Medium EPSS < 1% KEV · Not listed
Vendors
Debian Fedoraproject Linux and 2 more
Products
Debian Linux Fedora Linux Kernel and 4 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