Skip to content
Fencer Intel
medium 5.3

CVE-2017-15423 json

Inappropriate implementation in BoringSSL SPAKE2 in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to leak the low-order bit…

published 2018-08-28 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-6875

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

Inappropriate implementation in BoringSSL SPAKE2 in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to leak the low-order bits of SHA512(password) by inspecting protocol traffic.

Patch / fix

  • google chrome 63.0.3239.84
  • chromium-browser Ubuntu 14.04 LTS 63.0.3239.84-0ubuntu0.14.04.1
  • chromium-browser Ubuntu 16.04 LTS 63.0.3239.84-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 63.0.3239.84-0ubuntu1

ubuntu advisories UBUNTU-CVE-2017-15423

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

  • chromium-browser RHEL 6 EXTRAS 63.0.3239.84-1.el6_9

red hat advisories RHSA-2017:3401

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 SP2 63.0.3239.84-40.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2017:3245-1

  • chromium Arch Linux 63.0.3239.84-1

arch linux advisories AVG-544

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-2017-15423 updated cvss 4.3

chromium-browser: issue with spake implementation in boringssl

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 63.0.3239.84-1.el6_9 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 63.0.3239.84-1.el6_9 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 63.0.3239.84-1.el6_9
    fixed: vendor fix RHSA-2017:3401

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

1.51% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • n/a Google Chrome prior to 63.0.3239.84 unknown

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.