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CVE-2022-50233— Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name}

Quick assessment

Affected
Linux Linux
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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未正确使用strlen函数，可能导致字符串处理错误。

CVSS 7.8 · High EPSS 0.14% · P3

Affected Version Matrix 4

VendorProduct Version RangeStatus
Linux Linux 4c3dbb2c312c9fafbac30d98c523b8b1f3455d78< dd7b8cdde098cf9f7c8de409b5b7bbb98f97be80 affected
4.14 affected
< 4.14 unaffected
6.0≤ * unaffected
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I. Basic Information for CVE-2022-50233

Vulnerability Information
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Vulnerability Title
Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name}
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} Both dev_name and short_name are not guaranteed to be NULL terminated so this instead use strnlen and then attempt to determine if the resulting string needs to be truncated or not.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未正确使用strlen函数，可能导致字符串处理错误。
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
Linux Linux 4c3dbb2c312c9fafbac30d98c523b8b1f3455d78 ~ dd7b8cdde098cf9f7c8de409b5b7bbb98f97be80 -
Linux Linux 4.14 -

II. Public POCs for CVE-2022-50233

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III. Intelligence Information for CVE-2022-50233

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IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50233

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