CVE-2023-50229

Name	CVE-2023-50229
Description	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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3879-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
bluez (PTS)	bullseye	5.55-3.1+deb11u1	vulnerable
	bullseye (security)	5.55-3.1+deb11u2	fixed
	bookworm	5.66-1+deb12u2	fixed
	bookworm (security)	5.66-1+deb12u1	vulnerable
	trixie	5.82-1.1	fixed
	forky, sid	5.84-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
bluez	source	bullseye	5.55-3.1+deb11u2	DLA-3879-1
bluez	source	bookworm	5.66-1+deb12u2
bluez	source	(unstable)	5.70-1

Notes

[buster] - bluez <postponed> (Minor issue; can be fixed in next update)
https://www.zerodayinitiative.com/advisories/ZDI-23-1811/
https://github.com/bluez/bluez/commit/5ab5352531a9cc7058cce569607f3a6831464443 (5.70)