Critical severity9.1NVD Advisory· Published Nov 4, 2021· Updated Jun 17, 2026
CVE-2021-43400
CVE-2021-43400
Description
An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
27- BlueZ/BlueZdescription
- osv-coords23 versionspkg:rpm/suse/bluez&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/bluez&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/bluez&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/bluez&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/bluez&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP3pkg:rpm/opensuse/bluez&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/bluez&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS
< 5.48-150000.5.41.1+ 22 more
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150000.5.41.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.48-150200.13.17.1
- (no CPE)range: < 5.55-150300.3.14.1
- (no CPE)range: < 5.55-150300.3.14.1
- (no CPE)range: < 5.55-150300.3.14.1
- (no CPE)range: < 5.55-150300.3.14.1
- (no CPE)range: < 5.48-150000.5.41.1
Patches
Vulnerability mechanics
References
3- git.kernel.org/pub/scm/bluetooth/bluez.git/commit/nvdMailing ListPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/10/msg00026.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2024/09/msg00022.htmlnvd
News mentions
0No linked articles in our index yet.