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

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.28% (69th percentile)
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NVD
8.8 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-608753
  • published 26 Aug 2020
  • disclosed 1 Oct 2020
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Introduced: 26 Aug 2020

CVE-2020-15667 Open this link in a new tab
CWE-434 Open this link 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.