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CVE-2020-15670

Date: October 1, 2020

Mozilla developers reported memory safety bugs present in Firefox for Android 79. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.

Severity Score

Related Resources (9)

https://nvd.nist.gov/vuln/detail/CVE-2020-15670
https://www.mozilla.org/security/advisories/mfsa2020-39/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957
https://www.mozilla.org/security/advisories/mfsa2020-41/
https://www.mozilla.org/security/advisories/mfsa2020-38/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-15670
https://security.alpinelinux.org/vuln/CVE-2020-15670
https://www.mozilla.org/security/advisories/mfsa2020-36/
https://www.mend.io/vulnerability-database/CVE-2020-15670

Severity Score

Weakness Type (CWE)

Race Conditions

CWE-362

Use After Free

CWE-416

Reachable Assertion

CWE-617

Release of Invalid Pointer or Reference

CWE-763

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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