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GHSA-6vrv-94jv-crrg CVE-2020-15096

Context isolation bypass via Promise in Electron

Medium npm
Severity
6.8 / 10
Medium · CVSS 3.1
Exploit chance (EPSS)
0.81%
Chance of exploitation in the next 30 days. Higher than 56.93% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-501 Trust Boundary Violation
Fix
6.1.11
Upgrade electron to this version or later

Description

Impact

Apps using contextIsolation are affected.

This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions.

Workarounds

There are no app-side workarounds, you must update your Electron version to be protected.

Fixed Versions

  • 9.0.0-beta.21
  • 8.2.4
  • 7.2.4
  • 6.1.11

For more information

If you have any questions or comments about this advisory:

Affected versions

npm

PackageVulnerableFixed in
electron
< 6.1.11
6.1.11
electron
>= 7.0.0, < 7.2.4
7.2.4
electron
>= 8.0.0, < 8.2.4
8.2.4

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

electron npm → 6.1.11

npm
npm install electron@6.1.11
yarn
yarn add electron@6.1.11
pnpm
pnpm add electron@6.1.11

Severity breakdown

CVSS 3.1 6.8

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
None

Weakness

CWE-501: Trust Boundary Violation

The product mixes trusted and untrusted data in the same data structure or structured message.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-qqvq-6xgj-jw8g
Electron affected by libvpx's heap buffer overflow in vp8 encoding
High Known exploited Also affects electron
GHSA-j7hp-h8jx-5ppr
libwebp: OOB write in BuildHuffmanTable
High Known exploited Also affects electron
GHSA-995f-9x5r-2rcj
Heap buffer overflow in GPU
Critical Known exploited Also affects electron
GHSA-jr5w-w6x2-84p9
Electron: Mitigation for compromised eMudhra intermediate certificates
High Also affects electron
GHSA-h3v5-h239-pg29
Electron: Off-screen rendering on macOS trusts GPU-supplied frame geometry
Low Also affects electron
GHSA-3qxv-5xgr-q7w9
Electron: Frame subscription trusts GPU-supplied frame geometry
Low Also affects electron
GHSA-997q-gvvc-jwmx
Electron: openExternal permission requests can be attributed to the wrong origin
Medium Also affects electron
GHSA-fw47-9c62-h3vw
Electron: HID and USB permission checks can be attributed to the wrong origin
Medium Also affects electron
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