Unrestricted Upload of File with Dangerous Type Affecting firefox package, versions <80.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.63% (75th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-608753
  • published26 Aug 2020
  • disclosed1 Oct 2020

Introduced: 26 Aug 2020

CVE-2020-15667  (opens in a new tab)
CWE-434  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 80.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption and potentially arbitrary code execution. Within Firefox as released by Mozilla, this issue is only exploitable with the Mozilla-controlled signing key. This vulnerability affects Firefox < 80.

CVSS Base Scores

version 3.1