Go to homepageCyberStrike

Menu

Star on GitHub · 3.3k
Sign inDownload

CVE-2019-8922

8.8 · HIGH

A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48.

Published Nov 29, 2021CWE-787EPSS 1.52%

Overview

CVE-2019-8922 is a high-severity vulnerability. It was published on November 29, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.debian.org/debian-lts-announce/2022/10/msg00026.htmlRefsecurity.netapp.com/advisory/ntap-20211203-0002/Refssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/Reflists.debian.org/debian-lts-announce/2022/10/msg00026.htmlRefsecurity.netapp.com/advisory/ntap-20211203-0002/Refssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-8922?

CVE-2019-8922 is a high-severity vulnerability. It was published on November 29, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2019-8922?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-8922?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-8922?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-8922 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related HIGH CVEs from 2019

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999
LiveWatch live →