Vulnerability Name:

CVE-2019-17518 (CCN-176257)

Assigned:2019-10-12
Published:2019-10-12
Updated:2020-02-14
Summary:The Bluetooth Low Energy implementation on Dialog Semiconductor SDK through 1.0.14.1081 for DA1468x devices responds to link layer packets with a payload length larger than expected, allowing attackers in radio range to cause a buffer overflow via a crafted packet. This affects, for example, August Smart Lock.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.1 Medium (CVSS v2 Vector: AV:A/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Adjacent_Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-120
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-17518

Source: CCN
Type: SweynTooth Web page
Unleashing Mayhem over Bluetooth Low Energy

Source: MISC
Type: Third Party Advisory
https://asset-group.github.io/disclosures/sweyntooth/

Source: XF
Type: UNKNOWN
dialogsemiconductor-cve201917518-dos(176257)

Source: CCN
Type: Packet Storm Security [02-13-2020]
SweynTooth Bluetooth Exploits

Source: CCN
Type: Dialog Semiconductor Web site
SDK

Source: MISC
Type: Vendor Advisory
https://www.dialog-semiconductor.com/ja/products/connectivity/bluetooth-low-energy/smartbond-da14680-and-da14681

Vulnerable Configuration:Configuration 1:
  • cpe:/a:dialog-semiconductor:software_development_kit:*:*:*:*:*:*:*:* (Version <= 1.0.14.1081)
  • AND
  • cpe:/h:dialog-semiconductor:da14680:-:*:*:*:*:*:*:*
  • OR cpe:/h:dialog-semiconductor:da14681:-:*:*:*:*:*:*:*
  • OR cpe:/h:dialog-semiconductor:da14682:-:*:*:*:*:*:*:*
  • OR cpe:/h:dialog-semiconductor:da14683:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    dialog-semiconductor software development kit *
    dialog-semiconductor da14680 -
    dialog-semiconductor da14681 -
    dialog-semiconductor da14682 -
    dialog-semiconductor da14683 -