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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2020-12405
HistoryJul 09, 2020 - 3:15 p.m.

CVE-2020-12405

2020-07-0915:15:10
Debian Security Bug Tracker
security-tracker.debian.org
41
malicious page
thunderbird
firefox
sharedworkerservice
race condition
exploitable crash
vulnerability
unix

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

64.7%

When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

CVSS2

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.002

Percentile

64.7%