Ubuntu.comUB:CVE-2020-26557CVE-2020-26557
7.5 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.9 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:M/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
30.9%
Mesh Provisioning in the Bluetooth Mesh profile 1.0 and 1.0.1 may permit a
nearby device (without possession of the AuthValue used in the provisioning
protocol) to determine the AuthValue via a brute-force attack (unless the
AuthValue is sufficiently random and changed each time).
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 23.10 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
References
bugzilla.redhat.com/show_bug.cgi?id=1960009
kb.cert.org/vuls/id/799380
launchpad.net/bugs/cve/CVE-2020-26557
nvd.nist.gov/vuln/detail/CVE-2020-26557
security-tracker.debian.org/tracker/CVE-2020-26557
www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/predicatable-authvalue/
www.bluetooth.com/learn-about-bluetooth/key-attributes/bluetooth-security/reporting-security/
www.cve.org/CVERecord?id=CVE-2020-26557
Related
7.5 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.9 Low
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:M/Au:N/C:P/I:N/A:N
0.001 Low
EPSS
Percentile
30.9%