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  • Keyword (text search): linux kernel
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There are 86 matching records.
Displaying matches 21 through 40.
Vuln ID Summary CVSS Severity
CVE-2020-25668

A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.

Published: May 26, 2021; 8:15:15 AM -0400
V3.1: 7.0 HIGH
V2.0: 6.9 MEDIUM
CVE-2020-25673

A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect() leads to leak and eventually hanging-up the system.

Published: May 26, 2021; 7:15:08 AM -0400
V3.1: 5.5 MEDIUM
V2.0: 4.9 MEDIUM
CVE-2020-25671

A vulnerability was found in Linux Kernel, where a refcount leak in llcp_sock_connect() causing use-after-free which might lead to privilege escalations.

Published: May 26, 2021; 7:15:08 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-25670

A vulnerability was found in Linux Kernel where refcount leak in llcp_sock_bind() causing use-after-free which might lead to privilege escalations.

Published: May 26, 2021; 7:15:08 AM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-25672

A memory leak vulnerability was found in Linux kernel in llcp_sock_connect

Published: May 25, 2021; 4:15:07 PM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2021-31440

This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel 5.11.15. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of eBPF programs. The issue results from the lack of proper validation of user-supplied eBPF programs prior to executing them. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel. Was ZDI-CAN-13661.

Published: May 21, 2021; 11:15:07 AM -0400
V3.1: 7.0 HIGH
V2.0: 6.9 MEDIUM
CVE-2021-3483

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

Published: May 17, 2021; 8:15:07 AM -0400
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-33034

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.

Published: May 14, 2021; 7:15:09 PM -0400
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-33033

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.

Published: May 14, 2021; 7:15:09 PM -0400
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2019-25044

The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.

Published: May 14, 2021; 7:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-27830

A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function, it would dereference spk_ttyio_synth without checking whether it is NULL or not, and may lead to a NULL-ptr deref crash.

Published: May 13, 2021; 11:15:07 AM -0400
V3.1: 5.5 MEDIUM
V2.0: 2.1 LOW
CVE-2021-23134

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.

Published: May 12, 2021; 7:15:07 PM -0400
V3.1: 7.8 HIGH
V2.0: 4.6 MEDIUM
CVE-2021-32606

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.)

Published: May 11, 2021; 7:15:09 PM -0400
V3.1: 7.8 HIGH
V2.0: 7.2 HIGH
CVE-2020-26147

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

Published: May 11, 2021; 4:15:08 PM -0400
V3.1: 5.4 MEDIUM
V2.0: 3.2 LOW
CVE-2021-32399

net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.

Published: May 10, 2021; 6:15:06 PM -0400
V3.1: 7.0 HIGH
V2.0: 4.4 MEDIUM
CVE-2020-28588

An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.

Published: May 10, 2021; 3:15:08 PM -0400
V3.1: 5.5 MEDIUM
V2.0: 2.1 LOW
CVE-2021-31916

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.

Published: May 06, 2021; 1:15:08 PM -0400
V3.1: 6.7 MEDIUM
V2.0: 6.1 MEDIUM
CVE-2021-31829

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.

Published: May 06, 2021; 12:15:07 PM -0400
V3.1: 5.5 MEDIUM
V2.0: 2.1 LOW
CVE-2020-35519

An out-of-bounds (OOB) memory access flaw was found in x25_bind in net/x25/af_x25.c in the Linux kernel version v5.12-rc5. A bounds check failure allows a local attacker with a user account on the system 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 confidentiality, integrity, as well as system availability.

Published: May 06, 2021; 11:15:07 AM -0400
V3.1: 7.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-3501

A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

Published: May 06, 2021; 9:15:12 AM -0400
V3.1: 7.1 HIGH
V2.0: 3.6 LOW