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CVE-2021-32489

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

yubihsm-shell是个人开发者的一个可与 YubiHSM 2 交互的组件。该组件大多存在于与 YubiHSM 2 交互的应用中，面向用户和程序级别的交互。 yubihsm-shell 2.0.3版本存在安全漏洞。该漏洞源于程序没有正确验证从设备接收到的已认证消息的嵌入长度字段，导致分页故障。

CVSS 4.4 · Medium EPSS 0.92% · P59

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-32489

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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 because response_msg.st.len=8 can be accepted but triggers an integer overflow, which causes CRYPTO_cbc128_decrypt (in OpenSSL) to encounter an undersized buffer and experience a segmentation fault. The yubihsm-shell project is included in the YubiHSM 2 SDK product.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
yubihsm-shell 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
yubihsm-shell是个人开发者的一个可与 YubiHSM 2 交互的组件。该组件大多存在于与 YubiHSM 2 交互的应用中，面向用户和程序级别的交互。 yubihsm-shell 2.0.3版本存在安全漏洞。该漏洞源于程序没有正确验证从设备接收到的已认证消息的嵌入长度字段，导致分页故障。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-32489

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III. Intelligence Information for CVE-2021-32489

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Security Blog Posts for CVE-2021-32489 (1)

Same Patch Batch · n/a · 2021-05-10 · 45 CVEs total

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Showing top 20 of 45 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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