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Fencer Vulns
critical 9.8

CVE-2016-5142 in the critical feed json

The Web Cryptography API (aka WebCrypto) implementation in Blink, as used in Google Chrome before 52.0.2743.116, does not properly copy dat…

published 2016-08-07 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6093

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

The Web Cryptography API (aka WebCrypto) implementation in Blink, as used in Google Chrome before 52.0.2743.116, does not properly copy data buffers, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via crafted JavaScript code, related to NormalizeAlgorithm.cpp and SubtleCrypto.cpp.

Patch / fix

  • oxide-qt Ubuntu 14.04 LTS 1.17.7-0ubuntu0.14.04.1
  • oxide-qt Ubuntu 16.04 LTS 1.17.7-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 14.04 LTS 52.0.2743.116-0ubuntu0.14.04.1.1134
  • chromium-browser Ubuntu 16.04 LTS 52.0.2743.116-0ubuntu0.16.04.1.1250

ubuntu advisories UBUNTU-CVE-2016-5142

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 52.0.2743.116-1.el6

red hat advisories RHSA-2016:1580

  • chromium openSUSE Tumbleweed 55.0.2883.75-3.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 52.0.2743.116-92.1

opensuse advisories openSUSE-SU-2024:10171-1openSUSE-SU-2024:12948-1openSUSE-SU-2016:1982-1openSUSE-SU-2016:1983-1

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-2016-5142 updated cvss 8.8

chromium-browser: Use-after-free in Blink

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 52.0.2743.116-1.el6 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 52.0.2743.116-1.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 52.0.2743.116-1.el6
    fixed: vendor fix RHSA-2016:1580

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

1.66% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
Technology feeds

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.