CVE-2021-27217
Published Mar 4, 2021
Last updated 4 years ago
Overview
- Description
- An issue was discovered in the _send_secure_msg() function of Yubico yubihsm-shell through 2.0.3. The function does not correctly validate the embedded length field of an authenticated message received from the device. Out-of-bounds reads performed by aes_remove_padding() can crash the running process, depending on the memory layout. This could be used by an attacker to cause a client-side denial of service. The yubihsm-shell project is included in the YubiHSM 2 SDK product.
- Source
- cve@mitre.org
- NVD status
- Analyzed
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 4.4
- Impact score
- 3.6
- Exploitability score
- 0.7
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 3.5
- Impact score
- 2.9
- Exploitability score
- 6.8
- Vector string
- AV:N/AC:M/Au:S/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-125
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:yubico:yubihsm-shell:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9F7C9BAC-A77B-4333-A29C-4EABAF1B7003",
"versionEndIncluding": "2.0.3"
}
],
"operator": "OR"
}
]
}
]