Remote code execution via oversized LMP name length
Published Mar 5, 2020 · Updated Aug 5, 2024
Buffer overflow in Qualcomm Snapdragon Bluetooth firmware allows remote attackers to execute code through a malformed LMP name response. The LMP_NAME_RES handler accepts a total name length above the 248-byte limit, copies fragments past a 251-byte buffer, and corrupts allocator metadata. A nearby Bluetooth Classic device can exploit the overwrite without authentication to replace an executable LMP handler and control the Bluetooth controller.
Summary
What happened
Buffer overflow in Qualcomm Snapdragon Bluetooth firmware allows remote attackers to execute code through a malformed LMP name response. The LMP_NAME_RES handler accepts a total name length above the 248-byte limit, copies fragments past a 251-byte buffer, and corrupts allocator metadata. A nearby Bluetooth Classic device can exploit the overwrite without authentication to replace an executable LMP handler and control the Bluetooth controller.
The record
- CVE
- CVE-2019-14095
- Published
- Mar 5, 2020
- Updated
- Aug 5, 2024
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-120
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 5, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=APQ8009, APQ8016, APQ8017, APQ8053, APQ8076, APQ8096, APQ8096AU, APQ8098, MDM9206, MDM9207C, MDM9607, MDM9640, MDM9650, MSM8905, MSM8909, MSM8909W, MSM8917, MSM8920, MSM8937, MSM8939, MSM8940, MSM8953, MSM8996, MSM8996AU, MSM8998, Nicobar, QCA6174A, QCA6390, QCA6574AU, QCA9377, QCA9379, QCA9886, QCM2150, QCN7605, QCS404, QCS405, QCS605, QM215, Rennell, SA6155P, Saipan, SC8180X, SDA660, SDA845, SDM429, SDM429W, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDM850, SDX20, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Qualcomm LMP name-exchange attackfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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