Vulnerability Monitor

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CVE-2020-15654

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.

Published

2020-08-10T18:15:12.437

Last Modified

2024-11-21T05:05:57.160

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-835

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 79.0	Yes
Application	mozilla	firefox_esr	< 78.1	Yes
Application	mozilla	thunderbird	< 78.1	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	20.04	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1648333 Issue Tracking, Vendor Advisory ([email protected])
https://usn.ubuntu.com/4443-1/ Third Party Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2020-30/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2020-32/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2020-33/ Vendor Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.mozilla.org/show_bug.cgi?id=1648333 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4443-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2020-30/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2020-32/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2020-33/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)