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CVE-2022-24893— Espressif Bluetooth Mesh Stack Vulnerable to Out-of-bounds Write leading to memory buffer corruption

Quick assessment

Affected
espressif esp-idf
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.

Espressif ESP-IDF是中国乐鑫信息科技（Espressif）公司的一款物联网开发框架。 Espressif ESP-IDF 存在安全漏洞，该漏洞源于没有检查 Transaction Start PDU 的 SegN 字段，在配置期间可能会触发内存损坏漏洞。

CVSS 7.5 · High EPSS 0.52% · P43
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I. Basic Information for CVE-2022-24893

Vulnerability Information
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Vulnerability Title
Espressif Bluetooth Mesh Stack Vulnerable to Out-of-bounds Write leading to memory buffer corruption
Source: CVE Program / CVE List V5
Vulnerability Description
ESP-IDF is the official development framework for Espressif SoCs. In Espressif’s Bluetooth Mesh SDK (`ESP-BLE-MESH`), a memory corruption vulnerability can be triggered during provisioning, because there is no check for the `SegN` field of the Transaction Start PDU. This can result in memory corruption related attacks and potentially attacker gaining control of the entire system. Patch commits are available on the 4.1, 4.2, 4.3 and 4.4 branches and users are recommended to upgrade. The upgrade is applicable for all applications and users of `ESP-BLE-MESH` component from `ESP-IDF`. As it is implemented in the Bluetooth Mesh stack, there is no workaround for the user to fix the application layer without upgrading the underlying firmware.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
Espressif ESP-IDF 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Espressif ESP-IDF是中国乐鑫信息科技（Espressif）公司的一款物联网开发框架。 Espressif ESP-IDF 存在安全漏洞，该漏洞源于没有检查 Transaction Start PDU 的 SegN 字段，在配置期间可能会触发内存损坏漏洞。
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
espressif esp-idf < 4.1.4 -

II. Public POCs for CVE-2022-24893

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III. Intelligence Information for CVE-2022-24893

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Vendor Advisories for CVE-2022-24893 (1)

IV. Related Vulnerabilities

Same product: esp-idf
Same vendor: espressif
Same weakness: CWE-787

V. Comments for CVE-2022-24893

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