CVE-2018-5383

Bluetooth implementations may not sufficiently validate elliptic curve parameters during Diffie-Hellman key exchange

MEDIUM
6.8
CVSS Score
Published: August 7, 2018 at 09:00 PM UTC
Updated: June 17, 2026 at 02:00 AM UTC
4 products affected across 3 vendorsWL18XX Bluetooth Service PackmacOSiPhone OS

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.8%

Description

Bluetooth firmware or operating system software drivers in macOS versions before 10.13, High Sierra and iOS versions before 11.4, and Android versions before the 2018-06-05 patch may not sufficiently validate elliptic curve parameters used to generate public keys during a Diffie-Hellman key exchange, which may allow a remote attacker to obtain the encryption key used by the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2018-06-05 patch level
Affected range stops below 2018-06-05 patch level, so it looks safe — our inference, not a vendor statement
11 ≤ v < 11.411
Affected range stops below 11.4, so it looks safe — our inference, not a vendor statement
10.13 High Sierra ≤ v < 10.13.610.13 High Sierra
Affected range stops below 10.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.13.6, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (12)

x_refsource_MISCMitigationThird Party Advisory
http://www.cs.technion.ac.il/~biham/BT/
VDB Entryx_refsource_BIDBroken LinkThird Party Advisory
http://www.securityfocus.com/bid/104879
VDB Entryx_refsource_SECTRACKBroken LinkThird Party Advisory
http://www.securitytracker.com/id/1041432
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2019:2169
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4094-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4095-1/
Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
https://usn.ubuntu.com/4095-2/

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-325CWE-347

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