U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results (Refine Search)

Search Parameters:
  • Results Type: Overview
  • Keyword (text search): Linux Kernel
  • Search Type: Search All
  • Match: Exact
There are 3,073 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2021-43976

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).

Published: November 17, 2021; 12:15:08 PM -0500
V3.1: 4.6 MEDIUM
V2.0: 2.1 LOW
CVE-2021-43975

In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value.

Published: November 17, 2021; 12:15:08 PM -0500
V3.1: 6.7 MEDIUM
V2.0: 4.6 MEDIUM
CVE-2021-43389

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.

Published: November 04, 2021; 3:15:07 PM -0400
V3.1: 5.5 MEDIUM
V2.0: 2.1 LOW
CVE-2020-27820

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).

Published: November 02, 2021; 8:15:07 PM -0400
V3.1: 4.7 MEDIUM
V2.0: 4.7 MEDIUM
CVE-2021-43267

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.

Published: November 02, 2021; 7:15:07 PM -0400
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2021-43057

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.

Published: October 28, 2021; 12:15:08 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2021-43056

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.

Published: October 28, 2021; 12:15:08 AM -0400
V3.1: 5.5 MEDIUM
V2.0: 4.9 MEDIUM
CVE-2021-42327

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.

Published: October 21, 2021; 1:15:07 PM -0400
V3.1: 6.7 MEDIUM
V2.0: 4.6 MEDIUM
CVE-2021-42739

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

Published: October 20, 2021; 3:15:09 AM -0400
V3.1: 6.7 MEDIUM
V2.0: 4.6 MEDIUM
CVE-2021-42252

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.

Published: October 11, 2021; 3:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-42008

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.

Published: October 04, 2021; 8:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0: 6.9 MEDIUM
CVE-2021-41864

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel through 5.14.9 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

Published: October 01, 2021; 8:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-3653

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.

Published: September 29, 2021; 4:15:08 PM -0400
V3.1: 8.8 HIGH
V2.0: 6.1 MEDIUM
CVE-2021-20317

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

Published: September 27, 2021; 7:15:07 AM -0400
V3.1: 4.4 MEDIUM
V2.0: 4.9 MEDIUM
CVE-2021-38300

arch/mips/net/bpf_jit.c in the Linux kernel before 5.4.10 can generate undesirable machine code when transforming unprivileged cBPF programs, allowing execution of arbitrary code within the kernel context. This occurs because conditional branches can exceed the 128 KB limit of the MIPS architecture.

Published: September 20, 2021; 2:15:06 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2021-41073

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.

Published: September 19, 2021; 1:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2021-40490

A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.

Published: September 02, 2021; 9:15:07 PM -0400
V3.1: 7.0 HIGH
V2.0: 4.4 MEDIUM
CVE-2021-21781

An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11

Published: August 18, 2021; 11:15:07 AM -0400
V3.1: 3.3 LOW
V2.0: 2.1 LOW
CVE-2021-3635

A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.

Published: August 13, 2021; 10:15:07 AM -0400
V3.1: 4.4 MEDIUM
V2.0: 4.9 MEDIUM
CVE-2021-3573

A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5.

Published: August 13, 2021; 10:15:07 AM -0400
V3.1: 6.4 MEDIUM
V2.0: 6.9 MEDIUM