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Linux : Security Vulnerabilities (CVSS score between 4 and 5.99)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-45485 327 +Info 2021-12-25 2022-01-11
5.0
None Remote Low Not required Partial None None
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.
2 CVE-2021-45480 401 2021-12-24 2022-01-10
4.7
None Local Medium Not required None None Complete
An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.
3 CVE-2021-45469 125 2021-12-23 2022-01-14
4.6
None Local Low Not required Partial Partial Partial
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.
4 CVE-2021-44733 416 2021-12-22 2022-01-14
4.4
None Local Medium Not required Partial Partial Partial
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.
5 CVE-2021-43975 787 2021-11-17 2021-12-15
4.6
None Local Low Not required Partial Partial Partial
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.
6 CVE-2021-43056 2021-10-28 2021-11-28
4.9
None Local Low Not required None None Complete
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.
7 CVE-2021-42739 787 Overflow 2021-10-20 2021-12-17
4.6
None Local Low Not required Partial Partial Partial
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.
8 CVE-2021-42327 787 Overflow 2021-10-21 2021-11-28
4.6
None Local Low Not required Partial Partial Partial
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.
9 CVE-2021-42252 2021-10-11 2021-12-03
4.6
None Local Low Not required Partial Partial Partial
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.
10 CVE-2021-41864 190 Overflow 2021-10-02 2021-12-17
4.6
None Local Low Not required Partial Partial Partial
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.
11 CVE-2021-40490 362 2021-09-03 2021-12-17
4.4
None Local Medium Not required Partial Partial Partial
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.
12 CVE-2021-38207 120 DoS Overflow 2021-08-08 2021-10-18
5.0
None Remote Low Not required None None Partial
drivers/net/ethernet/xilinx/ll_temac_main.c in the Linux kernel before 5.12.13 allows remote attackers to cause a denial of service (buffer overflow and lockup) by sending heavy network traffic for about ten minutes.
13 CVE-2021-38204 416 DoS 2021-08-08 2022-01-04
4.6
None Local Low Not required Partial Partial Partial
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations.
14 CVE-2021-38202 125 DoS 2021-08-08 2021-10-07
5.0
None Remote Low Not required None None Partial
fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd.
15 CVE-2021-38201 119 DoS Overflow 2021-08-08 2021-10-07
5.0
None Remote Low Not required None None Partial
net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
16 CVE-2021-38166 787 Overflow 2021-08-07 2021-09-25
4.6
None Local Low Not required Partial Partial Partial
In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.
17 CVE-2021-37159 415 2021-07-21 2021-12-21
4.4
None Local Medium Not required Partial Partial Partial
hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
18 CVE-2021-36147 476 2021-07-02 2021-07-08
5.0
None Remote Low Not required None None Partial
An issue was discovered in ACRN before 2.5. It allows a devicemodel/hw/pci/virtio/virtio_net.c virtio_net_ping_rxq NULL pointer dereference for vq->used.
19 CVE-2021-36146 476 2021-07-02 2021-07-08
5.0
None Remote Low Not required None None Partial
ACRN before 2.5 has a devicemodel/hw/pci/xhci.c NULL Pointer Dereference for a trb pointer.
20 CVE-2021-36145 416 2021-07-02 2021-07-08
5.0
None Remote Low Not required None None Partial
The Device Model in ACRN through 2.5 has a devicemodel/core/mem.c use-after-free for a freed rb_entry.
21 CVE-2021-36144 416 2021-07-02 2021-07-08
5.0
None Remote Low Not required None None Partial
The polling timer handler in ACRN before 2.5 has a use-after-free for a freed virtio device, related to devicemodel/hw/pci/virtio/*.c.
22 CVE-2021-36143 476 2021-07-02 2021-07-08
5.0
None Remote Low Not required None None Partial
ACRN before 2.5 has a hw/pci/virtio/virtio.c vq_endchains NULL Pointer Dereference.
23 CVE-2021-33624 203 2021-06-23 2021-11-12
4.7
None Local Medium Not required Complete None None
In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.
24 CVE-2021-33034 416 2021-05-14 2021-06-23
4.6
None Local Low Not required Partial Partial Partial
In the Linux kernel before 5.12.4, net/bluetooth/hci_event.c has a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value.
25 CVE-2021-33033 416 2021-05-14 2021-06-09
4.6
None Local Low Not required Partial Partial Partial
The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.
26 CVE-2021-32399 362 2021-05-10 2021-06-23
4.4
None Local Medium Not required Partial Partial Partial
net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.
27 CVE-2021-29650 DoS 2021-03-30 2021-06-23
4.9
None Local Low Not required None None Complete
An issue was discovered in the Linux kernel before 5.11.11. The netfilter subsystem allows attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value, aka CID-175e476b8cdf.
28 CVE-2021-29649 401 2021-03-30 2021-04-05
4.9
None Local Low Not required None None Complete
An issue was discovered in the Linux kernel before 5.11.11. The user mode driver (UMD) has a copy_process() memory leak, related to a lack of cleanup steps in kernel/usermode_driver.c and kernel/bpf/preload/bpf_preload_kern.c, aka CID-f60a85cad677.
29 CVE-2021-29648 307 2021-03-30 2021-04-05
4.9
None Local Low Not required None None Complete
An issue was discovered in the Linux kernel before 5.11.11. The BPF subsystem does not properly consider that resolved_ids and resolved_sizes are intentionally uninitialized in the vmlinux BPF Type Format (BTF), which can cause a system crash upon an unexpected access attempt (in map_create in kernel/bpf/syscall.c or check_btf_info in kernel/bpf/verifier.c), aka CID-350a5c4dd245.
30 CVE-2021-29265 362 DoS 2021-03-26 2021-06-23
4.7
None Local Medium Not required None None Complete
An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.
31 CVE-2021-29264 2021-03-26 2021-06-23
4.7
None Local Medium Not required None None Complete
An issue was discovered in the Linux kernel through 5.11.10. drivers/net/ethernet/freescale/gianfar.c in the Freescale Gianfar Ethernet driver allows attackers to cause a system crash because a negative fragment size is calculated in situations involving an rx queue overrun when jumbo packets are used and NAPI is enabled, aka CID-d8861bab48b6.
32 CVE-2021-28971 400 2021-03-22 2021-06-23
4.9
None Local Low Not required None None Complete
In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.
33 CVE-2021-28952 120 Overflow 2021-03-20 2021-04-30
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in the Linux kernel through 5.11.8. The sound/soc/qcom/sdm845.c soundwire device driver has a buffer overflow when an unexpected port ID number is encountered, aka CID-1c668e1c0a0f. (This has been fixed in 5.12-rc4.)
34 CVE-2021-28951 DoS 2021-03-20 2021-04-30
4.9
None Local Low Not required None None Complete
An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25.
35 CVE-2021-28691 416 2021-06-29 2021-08-05
4.6
None Local Low Not required Partial Partial Partial
Guest triggered use-after-free in Linux xen-netback A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer.
36 CVE-2021-28038 770 DoS 2021-03-05 2021-04-09
4.9
None Local Low Not required None None Complete
An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.
37 CVE-2021-27365 787 2021-03-07 2021-12-10
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.
38 CVE-2021-26934 2021-02-17 2021-03-30
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in the Linux kernel 4.18 through 5.10.16, as used by Xen. The backend allocation (aka be-alloc) mode of the drm_xen_front drivers was not meant to be a supported configuration, but this wasn't stated accordingly in its support status entry.
39 CVE-2021-26930 2021-02-17 2022-01-04
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in the Linux kernel 3.11 through 5.10.16, as used by Xen. To service requests to the PV backend, the driver maps grant references provided by the frontend. In this process, errors may be encountered. In one case, an error encountered earlier might be discarded by later processing, resulting in the caller assuming successful mapping, and hence subsequent operations trying to access space that wasn't mapped. In another case, internal state would be insufficiently updated, preventing safe recovery from the error. This affects drivers/block/xen-blkback/blkback.c.
40 CVE-2021-23134 416 2021-05-12 2021-09-07
4.6
None Local Low Not required Partial Partial Partial
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.4 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.
41 CVE-2021-22555 787 +Priv Mem. Corr. 2021-07-07 2022-01-06
4.6
None Local Low Not required Partial Partial Partial
A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space
42 CVE-2021-22543 119 Overflow Bypass 2021-05-26 2021-12-17
4.6
None Local Low Not required Partial Partial Partial
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
43 CVE-2021-20317 665 DoS 2021-09-27 2021-12-21
4.9
None Local Low Not required None None Complete
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.
44 CVE-2021-20268 20 2021-03-09 2021-04-12
4.6
None Local Low Not required Partial Partial Partial
An out-of-bounds access flaw was found in the Linux kernel's implementation of the eBPF code verifier in the way a user running the eBPF script calls dev_map_init_map or sock_map_alloc. This flaw allows a local user to crash the system or possibly escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
45 CVE-2021-20265 400 2021-03-10 2021-12-08
4.9
None Local Low Not required None None Complete
A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allows an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability.
46 CVE-2021-20261 362 2021-03-11 2021-03-19
4.4
None Local Medium Not required Partial Partial Partial
A race condition was found in the Linux kernels implementation of the floppy disk drive controller driver software. The impact of this issue is lessened by the fact that the default permissions on the floppy device (/dev/fd0) are restricted to root. If the permissions on the device have changed the impact changes greatly. In the default configuration root (or equivalent) permissions are required to attack this flaw.
47 CVE-2021-20194 20 Overflow 2021-02-23 2021-03-31
4.6
None Local Low Not required Partial Partial Partial
There is a vulnerability in the linux kernel versions higher than 5.2 (if kernel compiled with config params CONFIG_BPF_SYSCALL=y , CONFIG_BPF=y , CONFIG_CGROUPS=y , CONFIG_CGROUP_BPF=y , CONFIG_HARDENED_USERCOPY not set, and BPF hook to getsockopt is registered). As result of BPF execution, the local user can trigger bug in __cgroup_bpf_run_filter_getsockopt() function that can lead to heap overflow (because of non-hardened usercopy). The impact of attack could be deny of service or possibly privileges escalation.
48 CVE-2021-3635 119 Overflow 2021-08-13 2021-08-23
4.9
None Local Low Not required None None Complete
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.
49 CVE-2021-3506 125 +Info 2021-04-19 2021-06-23
5.6
None Local Low Not required Partial None Complete
An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
50 CVE-2021-3483 416 2021-05-17 2021-06-29
4.6
None Local Low Not required Partial Partial Partial
A flaw was found in the Nosy driver in the Linux kernel. This issue allows a device to be inserted twice into a doubly-linked list, leading to a use-after-free when one of these devices is removed. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Versions before kernel 5.12-rc6 are affected
Total number of vulnerabilities : 1041   Page : 1 (This Page)2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
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