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[email protected]NVD:CVE-2020-24388

HistoryOct 19, 2020 - 8:15 p.m.

CVE-2020-24388

2020-10-1920:15:12

CWE-20

CWE-787

[email protected]

web.nvd.nist.gov

yubihsm-shell

message validation

oversized memcpy call

denial of service

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.007

Percentile

79.6%

JSON

An issue was discovered in the _send_secure_msg() function of yubihsm-shell through 2.0.2. The function does not validate the embedded length field of a message received from the device. This could lead to an oversized memcpy() call that will crash the running process. This could be used by an attacker to cause a denial of service.

Affected configurations

Nvd

Node

yubicoyubihsm-shellRange≤2.0.2

Node

fedoraprojectfedoraMatch33

VendorProductVersionCPE
yubicoyubihsm-shell*cpe:2.3:a:yubico:yubihsm-shell:*:*:*:*:*:*:*:*
fedoraprojectfedora33cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*