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CVE-2020-15654

Date: August 10, 2020

When in an endless loop, a website specifying a custom cursor using CSS could make it look like the user is interacting with the user interface, when they are not. This could lead to a perceived broken state, especially when interactions with existing browser dialogs and warnings do not work. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

Severity Score

Related Resources (11)

https://bugzilla.mozilla.org/show_bug.cgi?id=1648333
https://usn.ubuntu.com/4443-1/
https://security.alpinelinux.org/vuln/CVE-2020-15654
https://www.mozilla.org/security/advisories/mfsa2020-30/
https://access.redhat.com/security/cve/CVE-2020-15654
https://www.mozilla.org/security/advisories/mfsa2020-33/
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html
https://www.mozilla.org/security/advisories/mfsa2020-32/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-15654
https://nvd.nist.gov/vuln/detail/CVE-2020-15654
https://www.mend.io/vulnerability-database/CVE-2020-15654

Severity Score

Weakness Type (CWE)

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

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): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

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

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