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Linux : Security Vulnerabilities

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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-2021-43976 DoS 2021-11-17 2021-11-29
2.1
None Local Low Not required None None Partial
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).
2 CVE-2021-43975 787 2021-11-17 2021-11-29
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.
3 CVE-2021-43389 125 2021-11-04 2021-11-09
2.1
None Local Low Not required None None Partial
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.
4 CVE-2021-43267 20 2021-11-02 2021-11-29
7.5
None Remote Low Not required Partial Partial Partial
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.
5 CVE-2021-43057 416 Mem. Corr. 2021-10-28 2021-11-29
7.2
None Local Low Not required Complete Complete Complete
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.
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 2021-11-18
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 2021-11-12
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-2021-42008 787 2021-10-05 2021-11-26
6.9
None Local Medium Not required Complete Complete Complete
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.
11 CVE-2021-41864 190 Overflow 2021-10-02 2021-10-29
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.
12 CVE-2021-41073 269 +Priv 2021-09-19 2021-10-14
7.2
None Local Low Not required Complete Complete Complete
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.
13 CVE-2021-40490 362 2021-09-03 2021-10-16
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.
14 CVE-2021-38300 Exec Code 2021-09-20 2021-10-12
7.2
None Local Low Not required Complete Complete Complete
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.
15 CVE-2021-38209 203 2021-08-08 2021-08-12
2.1
None Local Low Not required Partial None None
net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls.
16 CVE-2021-38208 476 DoS 2021-08-08 2021-09-21
2.1
None Local Low Not required None None Partial
net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.
17 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.
18 CVE-2021-38206 476 DoS 2021-08-08 2021-08-12
2.1
None Local Low Not required None None Partial
The mac80211 subsystem in the Linux kernel before 5.12.13, when a device supporting only 5 GHz is used, allows attackers to cause a denial of service (NULL pointer dereference in the radiotap parser) by injecting a frame with 802.11a rates.
19 CVE-2021-38205 824 2021-08-08 2021-11-12
2.1
None Local Low Not required None Partial None
drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM pointer).
20 CVE-2021-38204 416 DoS 2021-08-08 2021-08-17
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.
21 CVE-2021-38203 770 DoS 2021-08-08 2021-10-07
2.1
None Local Low Not required None None Partial
btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.
22 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.
23 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.
24 CVE-2021-38200 476 DoS 2021-08-08 2021-08-12
2.1
None Local Low Not required None None Partial
arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_pointer NULL pointer dereference and OOPS) via a "perf record" command.
25 CVE-2021-38199 DoS 2021-08-08 2021-11-12
3.3
None Local Network Low Not required None None Partial
fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.
26 CVE-2021-38198 2021-08-08 2021-11-11
2.1
None Local Low Not required None None Partial
arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.
27 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.
28 CVE-2021-38160 120 2021-08-07 2021-10-18
7.2
None Local Low Not required Complete Complete Complete
** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.
29 CVE-2021-37576 787 Mem. Corr. 2021-07-26 2021-10-18
7.2
None Local Low Not required Complete Complete Complete
arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.
30 CVE-2021-37159 415 2021-07-21 2021-11-11
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.
31 CVE-2021-36148 120 Overflow 2021-07-02 2021-07-08
6.8
None Remote Medium Not required Partial Partial Partial
An issue was discovered in ACRN before 2.5. dmar_free_irte in hypervisor/arch/x86/vtd.c allows an irte_alloc_bitmap buffer overflow.
32 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.
33 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.
34 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.
35 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.
36 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.
37 CVE-2021-35477 203 Bypass +Info 2021-08-02 2021-11-11
2.1
None Local Low Not required Partial None None
In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.
38 CVE-2021-35039 347 2021-07-07 2021-10-22
6.9
None Local Medium Not required Complete Complete Complete
kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.
39 CVE-2021-34693 909 +Info 2021-06-14 2021-09-20
2.1
None Local Low Not required Partial None None
net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.
40 CVE-2021-34556 203 Bypass +Info 2021-08-02 2021-10-16
2.1
None Local Low Not required Partial None None
In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack.
41 CVE-2021-33909 120 Overflow 2021-07-20 2021-10-18
7.2
None Local Low Not required Complete Complete Complete
fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.
42 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.
43 CVE-2021-33200 787 2021-05-27 2021-07-06
7.2
None Local Low Not required Complete Complete Complete
kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
44 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.
45 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.
46 CVE-2021-32606 416 2021-05-11 2021-09-07
7.2
None Local Low Not required Complete Complete Complete
In the Linux kernel 5.11 through 5.12.2, isotp_setsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. (This does not affect earlier versions that lack CAN ISOTP SF_BROADCAST support.)
47 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.
48 CVE-2021-32078 125 2021-06-17 2021-09-20
6.6
None Local Low Not required Complete None Complete
An Out-of-Bounds Read was discovered in arch/arm/mach-footbridge/personal-pci.c in the Linux kernel through 5.12.11 because of the lack of a check for a value that shouldn't be negative, e.g., access to element -2 of an array, aka CID-298a58e165e4.
49 CVE-2021-31916 787 +Priv +Info 2021-05-06 2021-06-23
6.1
None Local Low Not required Partial Partial Complete
An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege 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-2021-31829 863 2021-05-06 2021-06-23
2.1
None Local Low Not required Partial None None
kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.
Total number of vulnerabilities : 2750   Page : 1 (This Page)2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
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