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[email protected]CVE-2020-6819

HistoryApr 24, 2020 - 4:15 p.m.

CVE-2020-6819

2020-04-2416:15:00

CWE-416

CWE-362

[email protected]

web.nvd.nist.gov

1075

In Wild

cve-2020-6819

security

vulnerability

nsdocshell destructor

use-after-free

thunderbird

firefox

firefox esr

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

8.2 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.024 Low

EPSS

Percentile

89.7%

JSON

Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.

VendorProductVersionCPE
mozillathunderbird*cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
mozillafirefox*cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
mozillafirefox_esr*cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
mozilla	thunderbird	*	cpe:2.3:a:mozilla:thunderbird::::::::
mozilla	firefox	*	cpe:2.3:a:mozilla:firefox::::::::
mozilla	firefox_esr	*	cpe:2.3:a:mozilla:firefox_esr::::::::