Mozilla Firefox ESR

CVE-2020-12417
HIGH 8.8

At a glance

Source
NVD
EPSS
EPSS 2.68 % · percentile 86 ()
State
PUBLISHED
Published
Updated
Assigner
mozilla
NVD status
Modified

Description

Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Weaknesses (CWE)

  • CWE-617 — Reachable Assertion
  • CWE-681 — Incorrect Conversion between Numeric Types
  • CWE-787 — Out-of-bounds Write

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 9.3AV:N/AC:M/Au:N/C:C/I:C/A:CNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Mozilla · Firefox ESRaffected unspecified < 68.10
Mozilla · Firefoxaffected unspecified < 78
Mozilla · Thunderbirdaffected unspecified < 68.10.0

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD