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Fencer Vulns
high 8.0

CVE-2018-5383 json

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

published 2018-08-07 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-17154

cvss
8.0
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

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.

Patch / fix

  • Apple macOS 10.13.6
  • Apple iOS 11.4
  • Android Open Source Project Android 2018-06-05 patch level
  • firmware-nonfree Debian 14, Debian 13, Debian 12 20190114-1

debian advisories DEBIAN-CVE-2018-5383

  • linux Ubuntu 16.04 LTS 4.4.0-159.187
  • linux Ubuntu 18.04 LTS 4.15.0-58.64
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1090.101
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1047.49
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1040.42~16.04.1
  • linux-gcp Ubuntu 18.04 LTS 4.15.0-1040.42
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-58.64~16.04.1
  • linux-hwe Ubuntu 18.04 LTS 5.0.0-23.24~18.04.1

ubuntu advisories UBUNTU-CVE-2018-5383

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • linux-firmware RHEL 7 20190429-72.gitddde598.el7
  • iwl100-firmware RHEL 7 39.31.5.1-72.el7
  • iwl105-firmware RHEL 7 18.168.6.1-72.el7
  • iwl135-firmware RHEL 7 18.168.6.1-72.el7
  • iwl1000-firmware RHEL 7 1:39.31.5.1-72.el7
  • iwl2000-firmware RHEL 7 18.168.6.1-72.el7
  • iwl2030-firmware RHEL 7 18.168.6.1-72.el7
  • iwl3160-firmware RHEL 7 22.0.7.0-72.el7

red hat advisories RHSA-2019:2169

  • kernel-firmware SLES for SAP 12 SP3, SLES for SAP 12 SP2, SLES 12 SP3 +5 more 20170530-21.28.1
  • kernel-firmware SLES for SAP 12 SP1, SLES 12 SP1-LTSS 20160516git-10.16.1
  • kernel-firmware SLES 12-LTSS 20140807git-5.11.1

suse advisories SUSE-SU-2019:0427-2SUSE-SU-2019:0466-1SUSE-SU-2019:0427-1SUSE-SU-2019:0422-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-5383 updated cvss 7.1

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

  • Red Hat Enterprise MRG 2 linux-firmware
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) iwl100-firmware 39.31.5.1-72.el7, iwl3160-firmware 22.0.7.0-72.el7, iwl5150-firmware 8.24.2.2-72.el7, iwl7260-firmware 22.0.7.0-72.el7, iwl7265-firmware 22.0.7.0-72.el7, iwl1000-firmware 39.31.5.1-72.el7, +12 more Red Hat Enterprise Linux ComputeNode (v. 7) iwl100-firmware 39.31.5.1-72.el7, iwl3160-firmware 22.0.7.0-72.el7, iwl5150-firmware 8.24.2.2-72.el7, iwl7260-firmware 22.0.7.0-72.el7, iwl7265-firmware 22.0.7.0-72.el7, iwl1000-firmware 39.31.5.1-72.el7, +12 more Red Hat Enterprise Linux Server (v. 7) iwl100-firmware 39.31.5.1-72.el7, iwl3160-firmware 22.0.7.0-72.el7, iwl5150-firmware 8.24.2.2-72.el7, iwl7260-firmware 22.0.7.0-72.el7, iwl7265-firmware 22.0.7.0-72.el7, iwl1000-firmware 39.31.5.1-72.el7, +12 more Red Hat Enterprise Linux Workstation (v. 7) iwl100-firmware 39.31.5.1-72.el7, iwl3160-firmware 22.0.7.0-72.el7, iwl5150-firmware 8.24.2.2-72.el7, iwl7260-firmware 22.0.7.0-72.el7, iwl7265-firmware 22.0.7.0-72.el7, iwl1000-firmware 39.31.5.1-72.el7, +12 more
    fixed: vendor fix RHSA-2019:2169
  • Red Hat Enterprise Linux 8 linux-firmware, iwl100-firmware, iwl105-firmware, iwl135-firmware, iwl1000-firmware, iwl2000-firmware, +15 more Red Hat Enterprise Linux 9 linux-firmware, iwl100-firmware, iwl105-firmware, iwl135-firmware, iwl1000-firmware, iwl2000-firmware, +11 more Red Hat Virtualization 4 linux-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 8.0 CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
NVD 3.1 6.8 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
NVD 2.0 4.3 AV:A/AC:M/Au:N/C:P/I:P/A:N

Affected products

  • Apple macOS
  • Apple iOS
  • Android Open Source Project Android

Classification

Weakness
  • CWE-325 Missing Cryptographic Step
  • CWE-347 Improper Verification of Cryptographic Signature

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.