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CVE-2020-15683

Date: October 22, 2020

Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 ESR < 78.4, Firefox < 82, and Thunderbird < 78.4.

Severity Score

Related Resources (17)

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00077.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00074.html
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1576843%2C1656987%2C1660954%2C1662760%2C1663439%2C1666140
https://lists.debian.org/debian-lts-announce/2020/10/msg00027.html
https://access.redhat.com/security/cve/CVE-2020-15683
https://www.debian.org/security/2020/dsa-4780
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-15683
https://security.alpinelinux.org/vuln/CVE-2020-15683
https://nvd.nist.gov/vuln/detail/CVE-2020-15683
https://security-tracker.debian.org/tracker/CVE-2020-15683
https://security.gentoo.org/glsa/202010-08
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00062.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00057.html
https://www.mozilla.org/security/advisories/mfsa2020-45/
https://www.mozilla.org/security/advisories/mfsa2020-47/
https://www.mozilla.org/security/advisories/mfsa2020-46/
https://www.mend.io/vulnerability-database/CVE-2020-15683

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Use After Free

CWE-416

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

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

CVSS v2

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

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