CVE-2019-8922

 

Published at: - 29-11-2021 09:15

Last modified: - 24-10-2022 04:15

Total changes: - 5

Description

A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. There isn't any check on whether there is enough space in the destination buffer. The function simply appends all data passed to it. The values of all attributes that are requested are appended to the output buffer. There are no size checks whatsoever, resulting in a simple heap overflow if one can craft a request where the response is large enough to overflow the preallocated buffer. This issue exists in service_attr_req gets called by process_request (in sdpd-request.c), which also allocates the response buffer.

Common Vulnerability Scoring System (CVSS)

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

 

Verification logic

 

Reference

• https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/
• https://security.netapp.com/advisory/ntap-20211203-0002/
• [debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security update-

 

Keywords

NVD

 

CVE-2019-8922

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures