CyberSecBulletin
CVE-2024-5836NVD status: Modified

Chrome: Use of Function with Inconsistent Implementations

Published Updated By the CyberSecBulletin desk

CVE-2024-5836 is a high-severity use of function with inconsistent implementations vulnerability in Chrome from Google, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists versions 126.0.6478.54, 126.0.6478.56, 126.0.6478.57 as the first without the flaw, so updating Chrome to one of those releases or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.5% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Chrome to 126.0.6478.54 or 126.0.6478.56 or 126.0.6478.57, whichever matches your release line, or a later version.
  2. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
  3. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
GoogleChrome126.0.6478.54 up to, but not including, 126.0.6478.54; before 126.0.6478.54; before 126.0.6478.56; before 126.0.6478.57126.0.6478.54, 126.0.6478.56, 126.0.6478.57
Fedora ProjectFedora39; 40Not stated

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
NoneNo account or login is needed.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.18.8HighNVD
CVSS 3.18.8HighCISA (ADP)

Official description

Inappropriate Implementation in DevTools in Google Chrome prior to 126.0.6478.54 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code via a crafted Chrome Extension. (Chromium security severity: High)

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Use of Function with Inconsistent Implementations

The code uses a function that has inconsistent implementations across operating systems and versions.

How developers prevent this class of flaw

  • Do not accept inconsistent behavior from the API specifications when the deviant behavior increases the risk level.

More Use of Function with Inconsistent Implementations vulnerabilities (CWE-474)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other references

Other vulnerabilities in Chrome

All Chrome vulnerabilities

Recent Use of Function with Inconsistent Implementations vulnerabilities

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