Security readout for executives and security teams
Plain-English summary
CVE-2019-8922 is a memory corruption flaw in BlueZ bluetoothd through 5.48. A nearby attacker could trigger a heap overflow through crafted Bluetooth SDP handling, potentially affecting confidentiality, integrity, and availability. No provided source shows confirmed active exploitation.
Executive priority
Treat this as a high-priority exposure for Bluetooth-enabled Linux or appliance fleets, especially laptops, edge systems, and embedded devices. Prioritize patching or disabling Bluetooth where business use is not required.
Technical view
The flaw is a CWE-787 heap-based buffer overflow in bluetoothd SDP request handling. service_attr_req appends requested attribute values into a preallocated response buffer allocated by process_request without checking available space, allowing an oversized response to overflow heap memory.
Likely exposure
Exposure is most likely on Linux systems, embedded devices, appliances, or storage platforms using vulnerable BlueZ bluetoothd with Bluetooth enabled and reachable by nearby attackers. The bundle does not provide complete CPEs or a full vendor inventory.
Exploitation context
CVSS rates this adjacent-network, low-complexity, unauthenticated, no-user-interaction issue as 8.8 high. The CVE is not listed as KEV in the bundle, and the provided sources do not claim active exploitation.
Researcher notes
The strongest evidence is the CVE description and SSD advisory describing missing bounds checks in SDP response construction. Product enumeration is incomplete in the bundle, so validation should focus on BlueZ version, bluetoothd presence, Bluetooth enablement, and vendor advisories.
Mitigation direction
- Identify systems running BlueZ bluetoothd through 5.48.
- Apply BlueZ fixes from your Linux distribution or appliance vendor.
- Review Debian and NetApp advisories for product-specific update guidance.
- Disable Bluetooth services or radio access where Bluetooth is unnecessary.
- Track vendor guidance if your platform is not covered by the provided sources.
Validation and detection
- Confirm whether affected hosts run BlueZ bluetoothd and the installed package version.
- Check whether Bluetooth is enabled and operational on in-scope systems.
- Validate vendor advisory applicability for Debian, NetApp, and other managed platforms.
- Use vulnerability scanner results as evidence, then confirm against package and vendor data.
- Document exceptions where Bluetooth is disabled or the product is not affected.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2019-8922 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/CVE reference
- https://security.netapp.com/advisory/ntap-20211203-0002/CVE reference
- [debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security updateCVE reference · mailing-list
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.