Bluez
CVE-2020-27153
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Lifecycle Timeline
1DescriptionCVE.org
In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.
AnalysisAI
In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. Rated high severity (CVSS 8.6), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-415. In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event. Affected products include: Bluez, Debian Debian Linux, Opensuse Leap. Version information: before 5.55.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
All versions of the SDP server in BlueZ 5.46 and earlier are vulnerable to an information disclosure vulnerability which
A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. Rated high severity (CVSS 8.8), this vu
A heap overflow vulnerability was found in bluez in versions prior to 5.63. Rated high severity (CVSS 8.8), this vulnera
In BlueZ 5.42, an out-of-bounds read was identified in "packet_hexdump" function in "monitor/packet.c" source file. Rate
In BlueZ 5.42, a buffer overflow was observed in "read_n" function in "tools/hcidump.c" source file. Rated high severity
An issue was discovered in bluetoothd in BlueZ through 5.48. Rated medium severity (CVSS 6.5), this vulnerability is no
BlueZ is a Bluetooth protocol stack for Linux. Rated medium severity (CVSS 6.5), this vulnerability is no authentication
In BlueZ 5.42, a use-after-free was identified in "conf_opt" function in "tools/parser/l2cap.c" source file. Rated mediu
In BlueZ 5.42, a buffer over-read was observed in "l2cap_dump" function in "tools/parser/l2cap.c" source file. Rated med
In BlueZ 5.42, a buffer over-read was identified in "l2cap_packet" function in "monitor/packet.c" source file. Rated med
In BlueZ 5.42, a buffer overflow was observed in "pklg_read_hci" function in "btsnoop.c" source file. Rated medium sever
In BlueZ 5.42, an out-of-bounds read was observed in "le_meta_ev_dump" function in "tools/parser/hci.c" source file. Rat
Same weakness CWE-415 – Double Free
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today