CVE-2023-50230

NameCVE-2023-50230
DescriptionBlueZ 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-20938.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3879-1, ELA-1177-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
bluez (PTS)jessie, jessie (lts)5.43-2+deb9u2~deb8u6vulnerable
stretch (security)5.43-2+deb9u5vulnerable
stretch (lts), stretch5.43-2+deb9u8fixed
buster, buster (lts)5.50-1.2~deb10u6fixed
buster (security)5.50-1.2~deb10u5vulnerable
bullseye5.55-3.1+deb11u1vulnerable
bullseye (security)5.55-3.1+deb11u2fixed
bookworm5.66-1+deb12u2fixed
bookworm (security)5.66-1+deb12u1vulnerable
sid, trixie5.79-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
bluezsourcestretch5.43-2+deb9u8ELA-1177-1
bluezsourcebuster5.50-1.2~deb10u6ELA-1177-1
bluezsourcebullseye5.55-3.1+deb11u2DLA-3879-1
bluezsourcebookworm5.66-1+deb12u2
bluezsource(unstable)5.70-1

Notes

[buster] - bluez <postponed> (Minor issue; can be fixed in next update)
https://www.zerodayinitiative.com/advisories/ZDI-23-1812/
https://github.com/bluez/bluez/commit/5ab5352531a9cc7058cce569607f3a6831464443 (5.70)
[jessie] - bluez <postponed> (Minor issue; can be fixed in next update)

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