PRIOn knowledge basePRION:CVE-2020-27153Double free
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
8.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.05 Low
EPSS
Percentile
92.6%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| bluez | lt | 5.55 | |
| debian_linux | eq | 9.0 | |
| debian_linux | eq | 10.0 | |
| leap | eq | 15.1 | |
| leap | eq | 15.2 |
References
lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.html
lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.html
bugzilla.redhat.com/show_bug.cgi?id=1884817
github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a
github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07
lists.debian.org/debian-lts-announce/2020/10/msg00022.html
security.gentoo.org/glsa/202011-01
www.debian.org/security/2021/dsa-4951
Related
8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
8.2 High
AI Score
Confidence
High
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.05 Low
EPSS
Percentile
92.6%