Buffer overflow in Bluez
CVE-2023-50229
BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of the Phone Book Access profile. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20936.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.023 (82.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000
Affected products
- Bluez — versions 5.66
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-23-1811/ (x_research-advisory, Third Party Advisory)
- github.com/bluez/bluez/commit/5ab5352531a9cc7058cce569607f3a6831464443 (vendor-advisory, Patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-50229?
- CVE-2023-50229 is a high-severity vulnerability in Bluez, classified under Heap-based Buffer Overflow. CVSS score: 8.0/10. Published 2024-05-03.
- How severe is CVE-2023-50229?
- High severity. CVSS v3 base score is 8.0 out of 10.