Bug 2278945 (CVE-2023-51596)

Summary: CVE-2023-51596 bluez: phone book access profile heap-based buffer overflow remote code execution vulnerability
Product: [Other] Security Response Reporter: Robb Gatica <rgatica>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found within the handling of the Phone Book Access profile in BlueZ. In certain conditions, a network-adjacent attacker can 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.
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Bug Depends On: 2278949    
Bug Blocks: 2278934    

Description Robb Gatica 2024-05-03 18:54:29 UTC 
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-20939.

https://www.zerodayinitiative.com/advisories/ZDI-23-1902/
Comment 1 Robb Gatica 2024-05-03 18:55:52 UTC 
Created bluez tracking bugs for this issue:

Affects: fedora-all [bug 2278949]
Comment 3 errata-xmlrpc 2024-11-12 10:45:22 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2024:9413 https://access.redhat.com/errata/RHSA-2024:9413